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Over 80,000 Microsoft Entra ID Accounts Hit by Password Spraying Attacks
- Proofpoint uncovered a large-scale account takeover campaign, UNK_SneakyStrike, targeting over 80,000 Microsoft Entra ID user accounts globally since late 2024.
- The campaign began in December 2024 and leverages the open-source penetration testing tool TeamFiltration to conduct user enumeration and password spraying attacks.
- Attackers abused AWS servers and a disposable Office 365 account to target roughly 100 cloud tenants and access Microsoft Teams, OneDrive, and Outlook data.
- On January 8, 16,500 accounts were targeted in a single day, with attackers successfully hijacking several accounts and accessing sensitive productivity information.
- This campaign illustrates the growing misuse of legitimate security tools in cyberattacks, prompting recommendations for multi-factor authentication, OAuth 2.0 enforcement, and blocking known malicious IPs.
22 Articles
22 Articles
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Entra ID: Stop Lateral Attacks with Advanced Identity Security
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Unravelling Cyber Defense Model Secrets: Password Spray Detections
Discover how to detect and respond to password spray attacks in Microsoft 365. Learn about Adlumin's latest detection logic, response strategies, and how to strengthen your defense against stealthy brute-force threats. The post Unravelling Cyber Defense Model Secrets: Password Spray Detections appeared first on Adlumin Cybersecurity.
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