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Security Solutions Team

CISO Daily Digest: Ransomware and OT Security Threats (20260523)

Lawmakers demanded answers from CISA leadership after the agency suffered a significant data leak; international law enforcement dismantled the first VPN service used by at least 25 ransomware affiliates in a coordinated global takedown; a critical remote code execution vulnerability was disclosed in Drupal; and Anthropic patched a sandbox escape in Claude Code.

CISO cybersecurity threats vulnerabilities infosec

The cybersecurity landscape on 2026-05-23 was dominated by Lawmakers Demand Answers as CISA Tries to Contain Data Leak.

  • Event Context: Lawmakers Demand Answers as CISA Tries to Contain Data Leak was reported as a significant security development.

🔗 Reference: Lawmakers Demand Answers as CISA Tries to Contain Data Leak | First VPN Dismantled in Global Takedown Over Use by 25 Ransomware Groups | CISA宣布提供研究人員通報漏洞已遭利用的管道 - iThome

This Week’s Active Threats

📌 Anthropic исправила проблему обхода песочницы в Claude Code

🔗 Reference: Anthropic исправила проблему обхода песочницы в Claude Code

📌 Lawmakers Demand Answers as CISA Tries to Contain Data Leak

🔗 Reference: Lawmakers Demand Answers as CISA Tries to Contain Data Leak

📌 Критический баг в Drupal может привести к удаленному выполнению кода

🔗 Reference: Критический баг в Drupal может привести к удаленному выполнению кода

📌 資安署認可專業證照崛起：SSCP 資安專業人員認證 - iThome

🔗 Reference: 資安署認可專業證照崛起：SSCP 資安專業人員認證 - iThome

📌 高階滲透測試，成為LPT(Master)之路 - iThome

🔗 Reference: 高階滲透測試，成為LPT(Master)之路 - iThome

📌 TrendAI™漏洞懸賞計畫(ZDI)引領產業漏洞修補 - iThome

🔗 Reference: TrendAI™漏洞懸賞計畫(ZDI)引領產業漏洞修補 - iThome

📌 70%日本地方政府都信任——OPSWAT 以「檔案零信任與實體隔離」重塑台灣關鍵基礎設施資安防線 - iThome

🔗 Reference: 70%日本地方政府都信任——OPSWAT 以「檔案零信任與實體隔離」重塑台灣關鍵基礎設施資安防線 - iThome

📌 Akamai Joins Growing Chorus of Vendors Betting Big on Secure Enterprise Browsers

🔗 Reference: Akamai Joins Growing Chorus of Vendors Betting Big on Secure Enterprise Browsers

How Can OPSWAT Help

OPSWAT MetaDefender provides multi-engine scanning and Deep Content Disarm and Reconstruction (CDR) to protect against threats like those covered in today’s digest. With over 30 anti-malware engines and real-time file analysis, organizations can detect and block even zero-day threats before they reach critical systems.