Lead Analysts: Jeewan Singh Jalal, Prabhakaran Ravichandhiran and Anand Bodke

Since November 3, 2025, KnowBe4 Threat Labs has been monitoring a highly sophisticated, multi-stage phishing operation that is actively targeting organizations to steal employees’ Microsoft 365 credentials. The campaign has been engineered to bypass traditional email security defenses, such as secure email gateways (SEGs),  and multi-factor authentication (MFA) tools.

Lead analysts: Louis Tiley, Lucy Gee and James Dyer

Between 1:48pm ET on October 29 and 6:53pm ET on October 30, 2025, KnowBe4 threat analysts observed a high volume of phishing emails detected by KnowBe4 Defend that were sent from the legitimate domain of one of the world’s largest sportswear brands.

Lead Analysts: Jeewan Singh Jalal, Prabhakaran Ravichandhiran and Anand Bodke

KnowBe4 Threat Labs has uncovered an emerging advanced phishing campaign targeting Microsoft 365 users globally to steal their credentials. The attackers are wielding a powerful new tool that’s completely changing the game for cybercriminals—turning what used to be complex, technical phishing setups into simple one-click launches that can bypass certain technical controls.

Lead Analysts: Lucy Gee and James Dyer

Cybercriminals want their payday. Unfortunately for the targets of phishing (and the organizations they work for) that means they’re constantly refining their tactics to create more sophisticated attacks that are harder to detect – by both email security products and people.