Calendar Invites and Live Proxies: Inside a Google Session Hijacking Campaign
thehackernews.com Nov 12, 2026

Calendar Invites and Live Proxies: Inside a Google Session Hijacking Campaign

AI-summarised brief · reviewed before publication

Since mid‑August 2026, a phishing campaign has been hijacking live Google Workspace sessions through seemingly innocuous Calendar invites. The attackers embed links that redirect through Google’s own /url redirector, then a Cloudflare Turnstile, and finally a dynamically generated password‑capture page that mirrors Google’s sign‑in interface. Victims enter credentials and two‑factor codes, which the attacker relays in real time, allowing session takeover without triggering standard defenses. Material Security’s Operation CloudFire has dismantled hundreds of domains, capturing over 99% of malicious messages with minimal false positives.

💡 Why It Matters

  • · The attack demonstrates that even trusted Google URLs can mask real‑time credential theft, exposing the limits of current email and authentication safeguards.
  • · It forces a reevaluation of how calendar invites are inspected and how multi‑factor authentication is monitored for anomalous real‑time use.