insider Attacks & Data Breaches

58 data breaches have involved insider as the primary attack method or incident type. Insider breaches involve employees, contractors, or other trusted individuals who misuse their legitimate access to steal or expose data. These can be malicious (intentional theft) or accidental (negligence).

Impact: Insiders often have access to the most sensitive data and know how to avoid detection. Insider incidents can go undetected for extended periods.

Prevention: Data loss prevention (DLP), user behavior analytics (UBA), access monitoring, and security awareness training address insider risk.

Understanding how insider attacks occur helps security teams prioritize defenses and incident response capabilities. Compare with other attack types like Ransomware, Phishing, or Supply Chain attacks. View the latest breaches across all incident types.