Report by KnowBe4
Phishing Trends Threat Report
5 FINDINGSPublished Apr 30, 2026
View Original Report →Key Findings
In the last six months, Microsoft Teams attacks escalated by 41%.
PhishingCollaboration ToolsMicrosoft Teams
Internal team impersonation was present in 30% of phishing attacks by threat actors in Q1 2026.
Social EngineeringInsider ImpersonationPhishing
In the last six months, 86% of phishing attacks were AI-driven.
PhishingAI Phishing
In the last six months, use of reverse proxies to steal Microsoft 365 credentials surged by 139%.
Reverse ProxiesMicrosoft 365Credential Theft
In the last six months, calendar invite phishing increased by 49%.
PhishingCollaboration ToolsSocial EngineeringCalendar Invite Phishing