📰 DAILY THREAT BRIEFING
Wednesday, May 27, 2026
12 News Items
THN · BleepingComputer · Krebs · Dark Reading · SANS

📰 Cybersecurity News Headlines

Top stories from leading cybersecurity publications as of May 27, 2026.

  1. KnowledgeDeliver flaw exploited as a zero-day to install web shells
    — Bleeping Computer

    Hackers exploited a critical zero-day vulnerability in a server running the KnowledgeDeliver learning management system (LMS) to deploy the …
  2. Feeding Frenzy: 'Megalodon' Malware Infects Thousands of GitHub Repos
    — Dark Reading

    In just six hours, the campaign quietly pushed thousands of malicious commits to more than 5,500 GitHub repositories, stealing credentials, …
  3. Charter confirms data breach after ShinyHunters extortion threat
    — Bleeping Computer

    U.S. telecommunications giant Charter Communications has confirmed it suffered a data breach after the ShinyHunters extortion group threaten…
  4. The Hackers Behind Shai-Hulud: Lucky or Skilled?
    — Dark Reading

    TeamPCP, the hackers behind the Shai-Hulud worm, has done significant damage to the open source ecosystem. But it's not necessarily due to s…
  5. Microsoft Issues Out-of-Band SharePoint Patch
    — Dark Reading

    SharePoint access often means access to the keys of the kingdom, something attackers and defenders understand all too well.
  6. MuddyWater Uses DLL Side-Loading in Espionage Campaign Targeting 9 Countries
    — The Hacker News

    The Iranian hacking group known as MuddyWater has been linked to a new campaign affecting at least nine organizations across nine countries …
  7. How Varonis Atlas integrates Claude Compliance API for AI governance
    — Bleeping Computer

    AI governance requires visibility into how AI tools interact with enterprise data. Varonis explains how its Atlas platform uses Claude Compl…
  8. Microsoft Defender can now automatically isolate hacked endpoints
    — Bleeping Computer

    Microsoft is testing a new Defender for Endpoint capability that will automatically isolate compromised endpoints to thwart attackers' attem…
  9. Remembering Tim Wilson, Whose Legacy Lives on at Dark Reading
    — Dark Reading

    The co-founder and former editor-in-chief passed away five years ago in November. As Dark Reading enters its third decade, we pause to celeb…
  10. [THN Webinar] New AI DDoS Attacks Are Smarter. Learn How to Fight Back
    — The Hacker News

    Every single day, hackers are finding new ways to crash websites and steal data. But right now, something has changed. Hackers are no longer…
  11. Microsoft Patches SharePoint RCE Flaw CVE-2026-45659 Across Server Versions
    — The Hacker News

    Microsoft has rolled out updates to fix a remote code execution vulnerability impacting SharePoint that could be exploited by bad actors in …
  12. MFA Prompt Bombing: Why Your Second Factor Isn't Saving You
    — The Hacker News

    Multi-factor authentication (MFA) was supposed to close a critical gap in identity security. It meant that, even if an attacker possessed th…

Generated by HiveNet.ai Threat Intelligence Platform · May 27, 2026 · Sources: The Hacker News, Bleeping Computer, Krebs on Security, Dark Reading, SANS ISC