Microsoft Teams Support Call Leads to Quick Assist Compromise in New Vishing Attack

Microsoft details a sophisticated voice phishing (vishing) campaign that successfully compromised a corporate environment in November 2025. Unlike conventional intrusions that rely on software exploits, this attack weaponized trust, collaboration platforms, and built-in Windows tooling to gain initial access. Microsoft Detection and Response Team details a sophisticated voice phishing (vishing) campaign that successfully compromised a corporate environment in November 2025. Unlike conventional intrusions that rely on software exploits, this attack weaponi... [3607 chars]