{"id":16268,"date":"2026-06-23T07:19:19","date_gmt":"2026-06-23T11:19:19","guid":{"rendered":"https:\/\/www.netwitness.com\/?post_type=glossary&p=16268"},"modified":"2026-06-23T08:21:34","modified_gmt":"2026-06-23T12:21:34","slug":"insider-threat","status":"publish","type":"glossary","link":"https:\/\/www.netwitness.com\/ja\/cyber-glossary\/insider-threat\/","title":{"rendered":"Insider Threat"},"content":{"rendered":"\t\t
\n\t\t\t\t
\n\t\t\t\t\t
\n\t\t\t\t
\n\t\t\t\t\t

What is Insider Threat?<\/h2>\t\t\t\t<\/div>\n\t\t\t\t
\n\t\t\t\t\t\t\t\t\t

An\u00a0Insider\u00a0Threat is a cybersecurity risk originating from individuals who work for an organization or have authorized access to its networks, systems, and sensitive data, including current employees, former employees, contractors, vendors, business partners, and board members who either intentionally or unintentionally misuse their legitimate access to cause harm, steal information, or compromise organizational security.<\/span>\u00a0<\/span><\/p>

This critical threat category encompasses malicious insider threats where individuals deliberately exploit their access for financial gain, revenge, or espionage, as well as negligent insider threats resulting from carelessness, human error, or manipulation where well-intentioned employees inadvertently create security vulnerabilities through accidental data leakage, weak password practices, or falling victim to social engineering attacks.<\/span>\u00a0<\/span><\/p>

Insider threats prove particularly dangerous because threat actors possess intimate knowledge of business processes, organizational vulnerabilities, security procedures, and system architectures that enable them to bypass external defenses with precision that external attackers cannot match.\u00a0<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t

\n\t\t\t\t
\n\t\t\t\t\t

Synonyms<\/h2>\t\t\t\t<\/div>\n\t\t
\n\t\t\t\t
\n\t\t\t\t\t\t\t