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Account Takeover: Impossible-Travel Sign-In operation cover
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Account Takeover: Impossible-Travel Sign-In

A finance analyst's Microsoft Entra account is accessed without MFA from Moldova 18 minutes after their normal London sign-in. Impossible travel confirmed. The unauthorized session reads the inbox via Graph and adds an external recovery address. Work the Entra audit trail to identify the attacker IP, the compromised mailbox, and the persistence mechanism.

25m
6 tasks
25 points
Free

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Jul 3, 2026

Friday, July 3, 2026 at 9:00 AM

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CloudSIEM

What you'll investigate

6 objectives unlock when this operation goes live.

1Locate the unauthorized entry point
2Establish the travel gap
3Trace the mailbox access
4Find the persistence move
5Classify the initial access
6Classify the mailbox collection

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