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ToolsJul 13, 2026

Breach at the Beach: Play the Ultimate Entra ID CTF

Varonis launches free 'Breach at the Beach' CTF to train defenders on Entra ID attack techniques.

Varonis Threat Labs has released a free online Capture the Flag (CTF) called 'Breach at the Beach' to educate cybersecurity professionals on identifying and investigating attacks targeting Microsoft Entra ID. The CTF uses realistic scenarios inspired by real-world cases, focusing on how threat actors abuse legitimate Entra ID features and non-human identities for data exfiltration, particularly in the context of evolving AI capabilities.

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The lesson from this incident

Full lesson

Threat actors increasingly exploit legitimate Microsoft Entra ID features — such as service principals, managed identities, and OAuth applications — to blend malicious activity with normal operations, making detection difficult. Non-human identities (NHIs) like app registrations and service accounts are often over-privileged and poorly monitored, creating stealthy pathways for data exfiltration. The rise of AI-assisted attacks amplifies these risks by enabling faster reconnaissance and abuse of cloud identity configurations. This CTF highlights that many security teams lack the hands-on familiarity needed to detect and investigate Entra ID-specific attack patterns before real incidents occur.

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Indicators of Compromise

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  • url — https://breachatthebeach.com

Entities

Varonis (vendor)Entra ID (technology)AI (technology)