QUIC-LEAK Vulnerability Allows Attackers to Drain Server Memory and Cause DoS

Security researchers at Imperva have disclosed a critical pre-handshake memory exhaustion vulnerability in the widely-used LSQUIC QUIC implementation that enables remote attackers to crash servers through denial-of-service attacks. The flaw, designated CVE-2025-54939 and dubbed “QUIC-LEAK,” bypasses standard QUIC connection-level protections…

New Campaign Uses Active Directory Federation Services to Steal M365 Credentials

Researchers at Push Security have discovered a new phishing campaign that targets Microsoft 365 (M365) systems and uses Active Directory Federation Services (ADFS) to enable credential theft. This attack vector exploits Microsoft’s authentication redirect mechanisms, effectively turning a legitimate service…

22-year-old Operator of ‘Rapper Bot’ Botnet Charged for Launching 3 Tbps DDoS Attack

Federal authorities have charged a 22-year-old Oregon man with operating one of the most powerful distributed denial-of-service (DDoS) botnets ever discovered, marking a significant victory in the ongoing battle against cybercriminal infrastructure. Ethan Foltz of Eugene, Oregon, faces federal charges…