Daily Threat Briefing — Mar 15, 2026

📰 Cybersecurity News Headlines

Top stories from leading cybersecurity publications as of March 15, 2026.

1. Microsoft releases Windows 11 OOB hotpatch to fix RRAS RCE flaw
   — Bleeping Computer
   
   Microsoft has released an out-of-band (OOB) update to fix a security vulnerabilities affecting Windows 11 Enterprise devices that receive ho…
2. OpenClaw AI Agent Flaws Could Enable Prompt Injection and Data Exfiltration
   — The Hacker News
   
   China's National Computer Network Emergency Response Technical Team (CNCERT) has issued a warning about the security stemming from the use o…
3. AppsFlyer Web SDK hijacked to spread crypto-stealing JavaScript code
   — Bleeping Computer
   
   The AppsFlyer Web SDK was temporarily hijacked this week with malicious code used to steal cryptocurrency in a supply-chain attack. […]
4. GlassWorm Supply-Chain Attack Abuses 72 Open VSX Extensions to Target Developers
   — The Hacker News
   
   Cybersecurity researchers have flagged a new iteration of the GlassWorm campaign that they say represents a "significant escalation" in how …
5. SmartApeSG campaign uses ClickFix page to push Remcos RAT, (Sat, Mar 14th)
   — SANS ISC
   
   Introduction
6. Microsoft: Windows 11 users can't access C: drive on some Samsung PCs
   — Bleeping Computer
   
   Microsoft is investigating a new issue affecting some Samsung laptops running Windows 11 after installing the February 2026 security updates…
7. FBI seeks victims of Steam games used to spread malware
   — Bleeping Computer
   
   The FBI is asking gamers who installed Steam titles containing malware to provide information as part of an ongoing investigation into eigh…
8. Fake PoCs, Misunderstood Risks Cause Cisco SD-WAN Chaos
   — Dark Reading
   
   The excitement around Cisco's latest SD-WAN bugs has inspired some light fraud, misunderstandings, and overlooked risks.
9. The Data Gap: Why Nonprofit Cyber Incidents Go Underreported
   — Dark Reading
   
   Threat actors target nonprofits due to security gaps and highly coveted information, but a lack of sufficient data makes it difficult to gra…
10. Chinese Hackers Target Southeast Asian Militaries with AppleChris and MemFun Malware
    — The Hacker News
    
    A suspected China-based cyber espionage operation has targeted Southeast Asian military organizations as part of a state-sponsored campaign …
11. Cyberattackers Don't Care About Good Causes
    — Dark Reading
    
    Sightline Security's founder and advisory board discuss how cybersecurity poses significant problems for nonprofits and suggest ways the ind…
12. Meta to Shut Down Instagram End-to-End Encrypted Chat Support Starting May 2026
    — The Hacker News
    
    Meta has announced plans to discontinue support for end-to-end encryption (E2EE) for chats on Instagram after May 8, 2026. "If you have chat…

Generated by HiveNet.ai Threat Intelligence Platform · March 15, 2026 · Sources: The Hacker News, Bleeping Computer, Krebs on Security, Dark Reading, SANS ISC