Google Calendar phishing campaign hijacks sessions, bypasses MFA
Operation CloudFire leveraged Google Calendar invites and trusted redirects to hijack corporate sessions and bypass MFA—nearly 900 domains were taken down, but the technique remains replicable.
Summary written by editorial AI · Source link below
A phishing campaign used Google Calendar invites, trusted redirects, and fake login pages to hijack corporate Google sessions and bypass MFA protections. Material Security examines how Operation CloudFire tracked the attacks, blocked malicious messages, and helped take down nearly 900 domains used by the attackers. [...]
Editorial Analysis
Calendar-invite phishing exploits implicit trust in collaboration tools, rendering traditional email-centric defences insufficient for MFA-bypass attacks.
Test whether your email and collaboration security stack detects and blocks phishing delivered via calendar invitations.
Attackers used Google Calendar invites to bypass MFA and hijack corporate accounts—collaboration-tool trust is now an exploitable attack surface.
Forward-looking interpretation drafted by editorial AI under human review — not a reproduction of the source. See methodology.
External link — opens at BleepingComputer in a new tab.
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