What Is IT Security?

What is IT Security?

IT security, also known as information technology security, is the practice of protecting an organization’s IT systems, digital assets, networks, applications, devices, identities, and data from unauthorized access, disruption, misuse, damage, or theft. It combines people, processes, policies, and IT security technologies to reduce exposure to cyberattacks, data breaches, malicious activity, system failures, and accidental data loss.

The primary goal of IT security is to preserve the confidentiality, integrity, and availability of information and the technology systems that process, store, or transmit it. In practice, IT security includes disciplines such as network security, endpoint security, cloud security, application security, data security, identity security, internet security, physical security, IoT security, and security operations.

Synonyms

Data Security
Cybersecurity
Cloud Security
Digital Security
Network Security
Systems Security
Computer Security
Endpoint Security
Platform Security
Zero Trust Security
Infrastructure Security
Operational Security (OpSec)
Application Security (AppSec)
Information Security (InfoSec)

What Does IT Security Protect?

Enterprise IT security protects the technologies, data, and services an organization depends on to operate.

This includes:

User accounts and digital identities
Laptops, desktops, servers, and mobile devices
Business applications and software platforms
Corporate networks and internet connections
Cloud platforms, workloads, and cloud data
Databases and sensitive business information
Email systems and collaboration tools
Application programming interfaces
Virtual machines and containers
Internet of Things devices
Data centers and physical infrastructure
Backup and recovery systems
Critical IT services and business processes

Effective IT security solutions protect assets across on-premises, cloud, hybrid, remote, and distributed IT environments.

Why is Risk Posture Important?

Security Area	What It Protects	Common Examples
Identity security	User accounts, credentials, permissions, and sessions.	Employees, administrators, contractors, and service accounts.
Endpoint security	Devices connected to the organization.	Laptops, servers, desktops, and mobile devices.
Network security	Network infrastructure and communications.	Routers, switches, VPNs, wireless networks, and traffic.
Data security	Information throughout its lifecycle.	Customer data, intellectual property, financial data, and records.
Application security	Software and application interfaces.	Web applications, APIs, SaaS platforms, and internal applications.
Cloud security	Cloud services, workloads, identities, and configurations.	IaaS, PaaS, SaaS, containers, and cloud storage.
Internet security	Web access, email, and internet-connected activity.	Browsers, websites, email gateways, and internet traffic.
Physical security	Hardware and physical IT locations.	Data centers, server rooms, devices, and storage systems.
IoT security	Connected and embedded devices.	Sensors, cameras, printers, and smart devices.
OT security	Operational systems and industrial environments.	Industrial control systems, production networks, and connected machinery.

Why is IT Security Important?

Organizations rely on IT systems to process transactions, communicate with customers, deliver services, store information, and support daily operations. A disruption or compromise can therefore affect much more than technology.

IT security is important because it helps organizations:

Prevent unauthorized access to systems and data
Reduce the risk of data breaches
Protect sensitive and regulated information
Maintain network integrity
Minimize operational disruption
Detect cyberattacks and malicious activity
Protect customer and stakeholder trust
Support regulatory and contractual compliance
Maintain the availability of critical systems
Limit the impact of ransomware and malware
Preserve evidence for incident response and investigation
Support secure cloud adoption and digital transformation
Improve business continuity and cyber resilience

Without an effective IT security program, organizations may struggle to identify compromised accounts, vulnerable systems, malicious network connections, cloud misconfigurations, or insider threats before they cause material damage.

How Does IT Security Work?

IT security works through a continuous cycle of identifying risks, applying protective controls, monitoring activity, investigating anomalies, responding to incidents, and improving security controls over time.

1. Identify:

Organizations first identify the systems, users, applications, devices, data, and services that need protection.

This stage may include:

Asset discovery
Data classification
Vulnerability identification
Dependency mapping
IT security assessment
Third-party risk analysis
Security architecture reviews

An organization cannot protect assets it does not know exist. Accurate asset and identity inventories are therefore foundational to IT security management.

2. Protect:

Protective controls are implemented to reduce the likelihood of compromise.

Common controls include:

Multi-factor authentication
Least-privilege access
Encryption
Network segmentation
Firewalls
Secure configurations
Endpoint protection
Patch management
Data loss prevention
Email and web filtering
Backup protection

3. Detect:

Security teams monitor IT environments for suspicious behavior, policy violations, indicators of compromise, and other signs of malicious activity.

Detection may involve:

Security information and event management
Network detection and response
Endpoint detection and response
User and entity behavior analytics
Cloud monitoring
Threat intelligence
Identity monitoring
Application and API monitoring

4. Investigate:

When suspicious activity is detected, analysts investigate to determine:

How access was gained
Which accounts were used
What executed
Which systems were affected
Whether the attacker moved laterally
What data was accessed or changed
Whether information left the environment
What needs to be contained

Investigation often requires correlating evidence from endpoints, network traffic, authentication systems, cloud platforms, applications, and security logs.

5. Respond:

Incident response actions are used to contain malicious activity and reduce its impact.

Response may include:

Isolating affected endpoints
Disabling compromised accounts
Revoking tokens or credentials
Blocking attacker infrastructure
Containing network sessions
Removing malicious files
Patching exploited vulnerabilities
Activating response playbooks

6. Recover:

Organizations restore affected systems, validate that threats have been removed, and return business services to normal operation.

Recovery activities may include:

Restoring backups
Rebuilding systems
Resetting credentials
Validating configurations
Monitoring for reinfection
Confirming service availability
Reviewing recovery objectives

7. Improve:

Following an incident, organizations use the findings to improve detection rules, security controls, access policies, response playbooks, and employee awareness.

This creates a continuous IT security risk management cycle rather than a one-time security project.

What are the Main Types of IT Security?

IT security covers several specialized disciplines. Each protects a different part of the technology environment, but the disciplines work best when they are integrated.

1. Network Security:

Network security protects network infrastructure, traffic, protocols, and connections against unauthorized access, interception, misuse, and disruption.

Common network security controls include:

Firewalls
Intrusion detection systems
Intrusion prevention systems
Network segmentation
Network access control
Virtual private networks
Network detection and response
Secure DNS
Web filtering
Traffic analysis

Network security helps protect network integrity and can reveal lateral movement, command-and-control traffic, denial-of-service activity, and suspicious communication between systems.

2. Endpoint Security:

Endpoint security protects devices such as laptops, desktops, servers, and mobile devices.

It helps detect and prevent:

Malware execution
Ransomware
Suspicious processes
Unauthorized scripts
Credential theft
File changes
Persistence mechanisms
Device misuse

Modern endpoint security solutions may include endpoint protection platforms, endpoint detection and response, device control, and automated isolation.

3. Cloud Security:

Cloud security protects cloud infrastructure, applications, identities, configurations, workloads, and data.

Cloud security may include:

Cloud security posture management
Cloud workload protection
Identity and entitlement management
Cloud data security
Container security
Encryption
Configuration monitoring
Cloud logging
SaaS security
API security

Cloud security is especially important because cloud environments are dynamic, identity-driven, and frequently managed across multiple providers.

4. Application Security:

Application security, or AppSec, protects software and APIs throughout the development and operational lifecycle.

It includes:

Secure coding practices
Code reviews
Pen testing
Vulnerability scanning
Web application firewalls
API protection
Software composition analysis
Runtime monitoring
DevSecOps controls

Application security reduces the risk of attackers exploiting software weaknesses, insecure APIs, poor authentication, or vulnerable third-party components.

5. Data Security:

Data security protects information from unauthorized access, disclosure, modification, destruction, or theft.

Controls may include:

Encryption
Data classification
Access controls
Tokenization
Data masking
Data loss prevention
Rights management
Database monitoring
Backup protection
Retention policies

Data security applies to information at rest, in transit, and in use.

6. Identity and Access Security:

Identity security controls who can access IT systems and what actions they are permitted to perform.

Key capabilities include:

Identity and access management
Multi-factor authentication
Single sign-on
Privileged access management
Role-based access control
Conditional access
Session monitoring
Identity threat detection
Account lifecycle management

Identity controls are critical because stolen credentials are commonly used in cyberattacks, phishing campaigns, cloud compromises, and business email compromise.

7. Internet Security:

Internet security protects users, devices, and systems from threats delivered through websites, email, browsers, cloud applications, and public networks.

Internet security controls may include:

Secure web gateways
DNS filtering
Email security
Browser isolation
Anti-phishing controls
URL filtering
Malware scanning
Proxy monitoring
Secure access service edge

It is closely related to online security and digital security but focuses specifically on internet-connected activity.

8. Email Security:

Email security protects users and organizations from phishing, malware, impersonation, credential theft, and business email compromise.

Common controls include:

Spam filtering
Malicious attachment detection
URL analysis
Email authentication
Impersonation detection
Data loss prevention
Account behavior monitoring

9. IoT Security:

IoT security protects internet-connected devices that may have limited built-in security or may be difficult to manage using traditional endpoint tools.

Examples include:

Cameras
Sensors
Printers
Smart building systems
Healthcare devices
Industrial sensors
Connected appliances

IoT security commonly relies on asset discovery, segmentation, traffic monitoring, access control, and anomaly detection.

10. OT Security:

OT security protects operational technology systems that monitor or control physical processes.

OT environments may include:

Industrial control systems
Supervisory control and data acquisition systems
Manufacturing equipment
Utilities infrastructure
Building management systems
Transportation systems

Although OT security is distinct from traditional IT cyber security, IT and OT environments are increasingly connected. Security teams therefore need visibility into both environments and the traffic that moves between them.

11. Physical Security:

Physical security protects IT equipment and facilities from theft, tampering, environmental damage, and unauthorized physical access.

Controls include:

Access cards
Security cameras
Visitor controls
Locks
Environmental monitoring
Fire suppression
Backup power
Secure server rooms

Physical security remains an essential part of information technology security because physical access can bypass many digital controls.

12. Security Operations:

Security operations bring together monitoring, threat detection, investigation, and incident response.

A security operations center, or SOC, may use multiple IT security technologies to monitor an organization’s environment continuously.

SOC IT security responsibilities may include:

Alert monitoring
Threat detection
Incident triage
Threat hunting
Investigation
Malware analysis
Incident response
Forensics
Threat intelligence
Detection engineering
Security reporting

IT Security vs. Cybersecurity vs. Information Security

The terms IT security, cybersecurity, and information security are often used interchangeably, but their scope can differ.

Term	Primary Focus	What It Protects
IT security	Technology systems and IT operations.	Networks, devices, applications, cloud platforms, identities, and digital data.
Cybersecurity	Protection against digital attacks and adversaries.	Connected systems, networks, applications, and digital assets.
Information security	Protection of information in any form.	Digital data, printed records, intellectual property, and verbal information.
Network security	Protection of networks and communications.	Traffic, protocols, devices, and network connections.
Data security	Protection of data throughout its lifecycle.	Databases, files, records, backups, and cloud data.
Digital security	Broad protection of digital identities, assets, and activity.	Devices, online accounts, information, and digital communications.

IT security is generally focused on protecting the technology environment and the systems that support business operations. Cybersecurity is more specifically associated with defending against digital attacks, threat actors, malware, and other cybersecurity threats.

Information security, or InfoSec, is broader because it includes information in both digital and non-digital forms. In practice, these disciplines overlap significantly and are often managed as part of a unified enterprise security strategy.

Common IT Security Threats

IT security threats include malicious attacks, internal risks, technology failures, and weaknesses in security processes.

1. Malware:

Malware is malicious software designed to damage systems, steal information, monitor activity, or provide attackers with unauthorized access.

Examples include:

Trojans
Spyware
Worms
Keyloggers
Rootkits
Botnets

2. Ransomware:

Ransomware encrypts systems or data and demands payment in exchange for restoration or non-disclosure.

Modern ransomware attacks may involve:

Credential theft
Lateral movement
Data exfiltration
Backup destruction
System encryption
Extortion

3. Phishing:

Phishing uses deceptive emails, messages, or websites to trick users into revealing credentials, downloading malware, or transferring money. Phishing attacks may target large groups or specific individuals.

4. Social Engineering:

Social engineering manipulates people into bypassing security controls or revealing sensitive information.

Examples include:

Impersonation
Pretexting
Baiting
Help-desk manipulation
Credential harvesting
Physical tailgating

5. Business Email Compromise:

Business email compromise, or BEC, is a form of fraud in which attackers impersonate executives, employees, suppliers, or trusted partners.

The goal is often to:

Redirect payments
Change banking details
Obtain sensitive documents
Convince employees to transfer funds
Gain access to business accounts

6. Denial-of-Service Attacks:

A denial-of-service, or DoS, attack attempts to make a system or service unavailable by overwhelming it with traffic or requests. A distributed denial-of-service, or DDoS, attack uses multiple compromised devices or systems to generate the attack traffic.

7. Zero-Day Exploits:

A zero-day exploit targets a software vulnerability before a patch or reliable mitigation is available. These attacks can be difficult to prevent because security teams may not yet know the vulnerability exists.

8. Insider Threats:

Insider threats originate from users who already have legitimate access to systems or data.

They may involve:

Malicious employees
Negligent users
Compromised accounts
Contractors
Former employees
Third-party users

9. Credential Theft:

Attackers may steal credentials through phishing, malware, social engineering, password reuse, or credential-stuffing attacks. Compromised credentials can be used to access email, cloud applications, VPNs, administrative systems, and sensitive data.

10. Cloud Misconfigurations:

Misconfigured storage, excessive permissions, exposed services, and insecure cloud identities can create paths to sensitive data and workloads.

11. Unpatched Vulnerabilities:

Unpatched systems may contain known weaknesses that attackers can exploit to gain access, elevate privileges, or execute code.

12. Supply Chain Attacks:

Supply chain attacks compromise a trusted vendor, software provider, service provider, or dependency to gain access to downstream organizations.

What are the Main IT Security Challenges?

Organizations may have extensive security tools and still struggle to reduce risk effectively.

Common IT security challenges include:

Expanding Attack Surfaces: Cloud adoption, remote work, third-party access, SaaS applications, IoT devices, and distributed infrastructure increase the number of systems that require protection.
Fragmented Visibility: Security data may be spread across networks, endpoints, identities, cloud platforms, applications, and separate IT security solutions. This fragmentation makes it difficult to reconstruct the full sequence of an attack.
Alert Overload: Security tools may generate a high volume of alerts, many of which lack sufficient context for efficient investigation.
Identity-Based Attacks: Attackers increasingly use valid credentials, tokens, and legitimate administrative tools, making malicious activity harder to distinguish from normal behavior.
Cloud Complexity: Cloud environments change quickly and may involve multiple providers, accounts, workloads, regions, and identity systems.
Legacy Systems: Older systems may be difficult to patch, monitor, or integrate with modern security technologies.
Skills Shortages: Many organizations lack enough experienced analysts, incident responders, cloud security specialists, and detection engineers.
Third-Party Risk: Vendors and service providers may have access to sensitive systems, data, or applications.
Tool Silos: Disconnected security products can create duplicated alerts, inconsistent workflows, and investigation delays.
Data Retention Limitations: Organizations may not retain enough logs, endpoint telemetry, or network evidence to investigate incidents thoroughly.

How Do IT Security Controls Work Together?

No single technology can address every IT security threat. Organizations therefore use multiple layers of preventive, detective, investigative, responsive, and recovery controls.

Control Type	Purpose	Examples
Preventive controls	Reduce the likelihood of compromise.	MFA, encryption, firewalls, segmentation, and patching.
Detective controls	Identify suspicious or unauthorized activity.	SIEM, NDR, EDR, IDS, and behavior analytics.
Investigative controls	Determine what happened and what was affected.	Logs, packets, endpoint telemetry, identity records, and forensics.
Responsive controls	Contain and remediate incidents.	Endpoint isolation, access revocation, blocking, and automated playbooks.
Recovery controls	Restore secure business operations.	Backups, disaster recovery, and system restoration.
Governance controls	Establish accountability and acceptable risk.	Policies, audits, frameworks, and risk assessments.

A mature IT security program connects these controls so that prevention, detection, investigation, response, and recovery reinforce one another.

Core IT Security Technologies

IT security technologies support different security functions across the environment.

1. Access and Identity Technologies:

Identity and access management
Multi-factor authentication
Single sign-on
Privileged access management
Conditional access
Password management
Identity governance

3. Endpoint Security Technologies:

Antivirus
Endpoint protection platforms
Endpoint detection and response
Mobile device management
Device control
Application control
Host firewalls

4. Cloud Security Technologies:

Cloud security posture management
Cloud workload protection
Cloud-native application protection platforms
Cloud infrastructure entitlement management
SaaS security posture management
Container security
Cloud data security

5. Detection and Analytics Technologies:

Security information and event management
User and entity behavior analytics
Extended detection and response
Threat intelligence platforms
Log management
Security analytics
Network traffic analysis

6. Response Technologies:

Security orchestration, automation, and response
Case management
Incident response platforms
Automated containment
Forensic tools
Malware analysis platforms

7. Data Protection Technologies:

Encryption
Data loss prevention
Database activity monitoring
Data classification
Tokenization
Digital rights management
Backup and recovery

What are IT Security Services?

IT security services are professional or managed services that help organizations assess, operate, improve, or validate their security programs.

Common IT security services include:

Managed detection and response
Security monitoring
Incident response retainers
Threat hunting
Pen testing
Vulnerability assessments
IT security audits
Security architecture reviews
Cloud security assessments
Digital forensics
Malware analysis
Red team exercises
Compliance assessments
Security awareness training
IT security consulting

Organizations may use external IT security services when they lack specialized internal resources, need independent validation, or require continuous monitoring.

What is an IT Security Assessment?

An IT security assessment evaluates an organization’s systems, controls, policies, vulnerabilities, and security practices.

It may examine:

Asset visibility
Access controls
Vulnerabilities
Patch management
Network architecture
Cloud configurations
Data protection
Monitoring coverage
Incident response readiness
Backup and recovery
Third-party access
Policy compliance

The purpose of an IT security assessment is to identify gaps, prioritize remediation, and improve IT security risk management.

What is an IT Security Audit?

An IT security audit is a formal review of security controls, processes, policies, evidence, and compliance requirements.

An audit may determine whether:

Security policies are documented
Controls are operating as intended
Access is appropriately restricted
Logs are retained
Risks are tracked
Incidents are documented
Regulatory requirements are being met
Corrective actions are completed

An IT security audit is generally more evidence-driven and compliance-focused than a broad security assessment.

What is IT Security Management

IT security management is the process of planning, implementing, operating, measuring, and improving an organization’s security program.

It typically includes:

Governance
Risk management
Policy development
Security architecture
Control implementation
Vendor management
Incident response
Compliance
Security awareness
Performance measurement
Continuous improvement

Effective IT security management connects technical controls with business risk, operational priorities, and regulatory obligations.

What is an IT Security Policy

An IT security policy defines the rules, responsibilities, and minimum controls required to protect an organization’s information technology assets.

An IT security policy may cover:

Acceptable use
Password requirements
Multi-factor authentication
Remote access
Privileged access
Device security
Data handling
Cloud usage
Software installation
Incident reporting
Third-party access
Backup requirements
Logging and monitoring
Security exceptions

Policies should be reviewed regularly and updated when technologies, risks, regulations, or business processes change.

What are IT Security Frameworks

IT security frameworks provide structured guidance for managing security risks and controls.

Organizations may use frameworks to:

Assess their current security posture
Define security requirements
Organize policies and controls
Identify gaps
Measure maturity
Support compliance
Improve incident readiness

Examples of security framework categories include:

Risk management frameworks
Control frameworks
Cybersecurity maturity models
Industry-specific security standards
Compliance-focused frameworks
Secure development frameworks

The framework an organization selects should reflect its size, industry, technology environment, risk tolerance, and regulatory obligations.

How to Build an Effective IT Security Program

An effective information security program should be risk-based, measurable, and aligned with business priorities.

Step 1: Establish Governance

Define ownership, accountability, security objectives, and risk tolerance.

Step 2: Inventory Assets

Identify devices, applications, cloud services, users, accounts, data, and third-party connections.

Step 3: Conduct an IT Security Assessment

Evaluate vulnerabilities, exposures, access paths, control gaps, and business impact.

Step 4: Prioritize Risks

Focus first on assets and threats that could cause the greatest operational, financial, legal, or reputational damage.

Step 5: Apply Foundational Controls

Implement:

MFA
Least privilege
Secure configuration
Patch management
Encryption
Segmentation
Endpoint protection
Backup protection

Step 6: Establish Continuous Monitoring

Collect and analyze telemetry across:

Networks
Endpoints
Identities
Cloud platforms
Applications
Email
Infrastructure
Security tools

Step 7: Develop an Incident Response Plan

Document:

Roles and responsibilities
Escalation procedures
Containment actions
Communication requirements
Evidence preservation
Recovery processes

Step 8: Test Security Controls

Use pen testing, vulnerability assessments, tabletop exercises, red team engagements, and control validation.

Step 9: Measure Performance

Track whether security controls are reducing exposure, improving detection, and accelerating response.

Step 10: Improve Continuously

Use audit findings, incidents, threat intelligence, and operational metrics to improve the program.

IT Security Best Practices

Organizations can strengthen IT security by following these practices:

Maintain an accurate inventory of assets and accounts
Require multi-factor authentication
Enforce least-privilege access
Monitor privileged accounts
Patch vulnerabilities based on risk
Use secure system configurations
Encrypt sensitive data
Segment critical networks
Protect and test backups
Monitor network, endpoint, identity, and cloud activity
Centralize security logs
Retain sufficient evidence for investigations
Test incident response plans
Conduct regular IT security assessments
Perform pen testing
Monitor third-party access
Train users to recognize phishing and social engineering
Review cloud permissions and configurations
Validate controls after major changes
Update policies after incidents

How to Measure IT Security Effectiveness

IT security should be measured using metrics that reflect exposure, detection, response, resilience, and program maturity.

1. Exposure Metrics:

Percentage of known assets inventoried
Number of critical vulnerabilities
Percentage of systems meeting patch deadlines
Number of unsupported systems
Percentage of privileged accounts protected by MFA
Number of publicly exposed services

2. Detection Metrics:

Mean time to detect
Percentage of critical systems monitored
Alert-to-incident conversion rate
False-positive rate
Detection coverage across attack techniques
Percentage of cloud accounts with logging enabled

3. Investigation Metrics:

Mean time to investigate
Percentage of incidents with sufficient evidence
Number of investigation tool pivots
Time required to reconstruct an attack timeline
Percentage of incidents with identified root cause

4. Response Metrics:

Mean time to contain
Percentage of incidents handled within service-level targets
Percentage of playbooks tested
Time required to isolate affected systems
Percentage of compromised accounts revoked promptly

5. Resilience Metrics:

Backup restoration success rate
Recovery time objective performance
Recovery point objective performance
Repeat incident rate
Percentage of corrective actions completed
Security control validation rate

Who is Responsible for IT Security?

Organizations can evaluate the maturity of their risk posture using the following model.

Role	Primary Responsibility
Board and executives	Risk oversight, funding, and accountability.
CISO and security leadership	Strategy, governance, and risk management.
SOC teams	Monitoring, investigation, and incident response.
IT operations	System administration, patching, configuration, and availability.
Network teams	Network architecture, segmentation, and access controls.
Cloud teams	Cloud configuration, identity, workload, and data protection.
Developers and DevOps	Secure application development and deployment.
Data owners	Classification, access decisions, and retention.
Employees	Following policies and reporting suspicious activity.
Vendors	Meeting contractual and technical security requirements.

Security cannot be delegated entirely to the IT department. Business leaders, employees, service providers, and technology teams all influence the organization’s security posture.

IT Security Checklist

1. Governance:

Is ownership of IT security clearly defined?
Is there a documented IT security policy?
Are security risks reviewed by leadership?
Are third-party responsibilities documented?

2. Asset Management:

Are all devices, applications, cloud services, and accounts inventoried?
Are critical assets identified?
Are unsupported systems tracked?

3. Identity:

Is MFA required for critical access?
Are privileged accounts monitored?
Are unused accounts disabled?
Is least privilege enforced?

4. Protection:

Are systems patched based on risk?
Is sensitive data encrypted?
Are critical systems segmented?
Are backups protected and tested?

5. Detection:

Are endpoints, networks, identities, cloud platforms, and applications monitored?
Are security logs centralized?
Can analysts correlate activity across systems?
Are suspicious behaviors detected, not just known threats?

6. Response:

Is there a documented incident response plan?
Are escalation paths defined?
Can compromised accounts and devices be isolated quickly?
Are response playbooks tested?
Is evidence retained for investigation?

7. Recovery:

Are recovery objectives documented?
Are backups regularly restored and validated?
Are systems monitored after recovery?
Are lessons from incidents used to improve controls?

Related Terms & Synonyms

Data Security: Data security protects information from unauthorized access, disclosure, modification, loss, or destruction.
Cybersecurity: Cybersecurity protects systems, networks, applications, and digital assets from cyberattacks and malicious actors.
Cloud Security: Cloud security protects cloud infrastructure, workloads, applications, identities, configurations, and data.
Digital Security: Digital security is the broad protection of digital devices, online identities, information, and communications.
Network Security: Network security protects network infrastructure, communications, traffic, devices, and protocols.
Systems Security: Systems security protects operating systems, servers, computing platforms, and system resources.
Computer Security: Computer security protects individual computing systems from malware, misuse, exploitation, and unauthorized access.
Endpoint Security: Endpoint security protects laptops, desktops, servers, and mobile devices.
Platform Security: Platform security protects the underlying technologies on which applications, data, and services operate.
Zero Trust Security: Zero trust security assumes that no user, device, or connection should be trusted automatically and requires continuous verification.
Infrastructure Security: Infrastructure security protects servers, networks, storage, virtualization systems, cloud environments, and data centers.
Operational Security: Operational security, or OpSec, identifies and protects sensitive operational information that adversaries could use.
Application Security: Application security protects software, APIs, and development processes from vulnerabilities and attacks.
Information Security: Information security protects information in digital, physical, and other forms against unauthorized access, disclosure, alteration, or destruction.

IT Security

Related Topics

What is IT Security?

Synonyms

What Does IT Security Protect?

Why is Risk Posture Important?

Why is IT Security Important?

How Does IT Security Work?

1. Identify:

2. Protect:

3. Detect:

4. Investigate:

5. Respond:

6. Recover:

7. Improve:

What are the Main Types of IT Security?

1. Network Security:

2. Endpoint Security:

3. Cloud Security:

4. Application Security:

5. Data Security:

6. Identity and Access Security:

7. Internet Security:

8. Email Security:

9. IoT Security:

10. OT Security:

11. Physical Security:

12. Security Operations:

IT Security vs. Cybersecurity vs. Information Security

Common IT Security Threats

1. Malware:

2. Ransomware:

3. Phishing:

4. Social Engineering:

5. Business Email Compromise:

6. Denial-of-Service Attacks:

7. Zero-Day Exploits:

8. Insider Threats:

9. Credential Theft:

10. Cloud Misconfigurations:

11. Unpatched Vulnerabilities:

12. Supply Chain Attacks:

What are the Main IT Security Challenges?

How Do IT Security Controls Work Together?

Core IT Security Technologies

1. Access and Identity Technologies:

2. Network Protection Technologies:

3. Endpoint Security Technologies:

4. Cloud Security Technologies:

5. Detection and Analytics Technologies:

6. Response Technologies:

7. Data Protection Technologies:

What are IT Security Services?

What is an IT Security Assessment?

What is an IT Security Audit?

What is IT Security Management

What is an IT Security Policy

What are IT Security Frameworks

How to Build an Effective IT Security Program

Step 1: Establish Governance

Step 2: Inventory Assets

Step 3: Conduct an IT Security Assessment

Step 4: Prioritize Risks

Step 5: Apply Foundational Controls

Step 6: Establish Continuous Monitoring

Step 7: Develop an Incident Response Plan

Step 8: Test Security Controls

Step 9: Measure Performance

Step 10: Improve Continuously

IT Security Best Practices

How to Measure IT Security Effectiveness

1. Exposure Metrics:

2. Detection Metrics:

3. Investigation Metrics:

4. Response Metrics:

5. Resilience Metrics:

Who is Responsible for IT Security?

IT Security Checklist

1. Governance:

2. Asset Management: