Ravie LakshmananAug 20, 2026Vulnerability / Email Security A now-patched security flaw impacting Zimbra Collaboration (ZCS) has come under active exploitation in the wild,...
Researchers at the University of Massachusetts Amherst have demonstrated an attack that revives expired Visa contactless credit cards for real in-store purchases by...
Cybersecurity researchers have disclosed two denial-of-service (DoS) attacks that exploit how major content delivery networks (CDNs) convert client-facing HTTP/3 traffic into HTTP/1.1 requests...