AI-Driven Insider Risk Now a “Critical Business Threat,” Report Warns

Mimecast's State of Human Risk Report 2026 warns that insider threats are increasing globally, with 42% of organizations reporting rises in malicious insiders and employee negligence; security leaders expect an average of six insider-driven incidents per month. The report highlights that AI and large language models expand the attack surface by helping attackers and malicious insiders create more realistic phishing and to exfiltrate data at scale, urging security teams to address human risk as a critical business threat.