The legal and regulatory requirement to inform affected parties, regulators, and other stakeholders when a data breach or security incident has occurred, typically within specified timeframes.
Breach notification requirements for insider threat incidents vary by jurisdiction and regulation but generally require notification within 72 hours under GDPR, immediate notification for banking regulators, and varying requirements under state laws. Insider threat notifications are particularly sensitive because they involve trusted employees and may indicate systemic security failures. Organizations must determine notification requirements based on data types involved, affected individuals, and regulatory obligations while coordinating with ongoing investigations and legal proceedings.