Cyber Briefing

July 21, 2025 - Cyber Briefing


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👉 What's happening in cybersecurity today?


Microsoft patches critical SharePoint RCE under active attack, AppLocker flaw allows bypass via version misconfig, and PoisonSeed phishing bypasses FIDO protections. Arcadia Finance drained of $3.5M in WETH, ATM jackpotting hits Michigan for $107K, and ransomware cripples Korea’s top guarantee insurer. Free decryptor released for Phobos and 8Base, Armenian Ryuk hacker indicted via BTC tracing, and Roblox’s AI teen safety tools raise privacy concerns.


👉 Important Links:


Cyber Events: https://cybersecurity.cybermaterial.com/s/cyber-events

Cyber Jobs: https://cybersecurity.cybermaterial.com/s/cyber-jobs

Cyber Book Club: https://cybersecurity.cybermaterial.com/s/cyber-book-club

Cyber Book of the day: https://amzn.to/3pI77z1

Cyber Tools: https://cybersecurity.cybermaterial.com/s/tools

Visit 911Cyber: https://911cyber.app/

Visit Cybermaterial: https://cybermaterial.com/


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Cyber BriefingBy CyberMaterial