Updated
Updated · Computerworld · Oct 29
Hackers Steal Microsoft Credentials With Fake Anthropic Previews as Google Logins Also Targeted
Updated
Updated · Computerworld · Oct 29

Hackers Steal Microsoft Credentials With Fake Anthropic Previews as Google Logins Also Targeted

3 articles · Updated · Computerworld · Oct 29

Summary

  • Cofense identified a phishing campaign that lures enterprise users with fake invite-only Anthropic preview emails and steals Google and Microsoft credentials through spoofed registration and login pages.
  • GoTo Webinar branding helps the emails evade suspicion, while URL shorteners, compromised links and 2 CAPTCHA checkpoints block scanners, VPNs and Tor-based analysis before victims reach the fake pages.
  • Microsoft targets lose both usernames and passwords, while the Google spoof appears to capture only usernames because of a likely misconfiguration; either way, attackers can use stolen access to move deeper into corporate systems.
  • Researchers flagged small clues—“Austin from nthropic,” mixed GoTo Webinar, Zoom, Google and Microsoft branding, and deceptive domains like office[.]com-access-sharepoint[.]com—as signs defenders should train users to catch.
  • Dickson said AI waitlists and private previews prime employees for this lure, making phishing-resistant MFA, credential resets and independent verification of AI invites more important than relying on workers to spot every fake.

Insights

How did a fake Anthropic webinar invite use Cloudflare, Zoom-style pages, and Google/Microsoft logins to quietly steal enterprise credentials?
Why are AI-themed invitations becoming such effective phishing bait, and can passkeys really stop multi-step brand impersonation attacks?
If an employee entered credentials into this fake Anthropic flow, what should security teams revoke, reset, and investigate beyond the password?