IntroductionThreat actors often take advantage of major global events to fuel interest in their malicious activities. Zscaler ThreatLabz is diligently tracking a surge in cybercriminal activity that ...

ThreatsDay: OAuth abuse, Signal hijacks, Zombie ZIP evasion, Teams malware, AI hack, RondoDox botnet, and more cyber stories.

Hackers abused Microsoft Teams and Quick Assist to deploy A0Backdoor malware at financial and healthcare organizations, researchers warn.

In mid-January 2026, Microsoft Defender Experts identified a credential theft campaign that uses fake virtual private network (VPN) clients distributed through search engine optimization (SEO) ...