📰 DAILY THREAT BRIEFING
Tuesday, September 1, 2026
12 News Items
THN · BleepingComputer · Krebs · Dark Reading · SANS

📰 Cybersecurity News Headlines

Top stories from leading cybersecurity publications as of September 1, 2026.

  1. Guildma (Astaroth) malware infection from Brazilian Portuguese email, (Tue, Sep 1st)
    — SANS ISC

    Introduction
  2. Anthropic Users Hit by Infostealer Attacks, Session Thefts
    — Dark Reading

    A threat actor used a variety of infostealers to collect session information and access Claude accounts belonging to an unknown number of us…
  3. Cronos blockchain restarts after $74 million Tectonic exploit
    — Bleeping Computer

    The Cronos blockchain network has resumed trading activity after a price-manipulation attack on the Tectonic cryptocurrency lending platform…
  4. 'TerminalFix' Campaign Weaponizes PowerShell for Enterprise Attacks
    — Dark Reading

    The ClickFix-style campaign features a sophisticated, multistage attack chain that includes reverse tunnels into victim organizations' netwo…
  5. The Coding-Agent Trap: When a "Free" LLM Endpoint Is the Adversary, (Mon, Aug 31st)
    — SANS ISC

    One of my internet-exposed inference honeypots was discovered, relabeled with sought-after model names, and incorporated into infrastructure…
  6. Microsoft warns of TerminalFix attacks deploying reverse tunnels
    — Bleeping Computer

    A new ClickFix variant dubbed TerminalFix uses fake Cloudflare CAPTCHA prompts on compromised websites to trick victims into running malicio…
  7. AI Model Rules Are Not Security Controls
    — Dark Reading

    OpenAI's Hugging Face attack postmortem shows agents don't care about rules — they need strong controls.
  8. North Korean Job Fraud Expands Beyond IT Into Healthcare and Sales
    — The Hacker News

    Threat actors with ties to the Democratic People's Republic of Korea (aka DPRK or North Korea) have been observed seeking job opportunities …
  9. Microsoft Exchange Online outage causes email failures, auth issues
    — Bleeping Computer

    Microsoft is investigating a widespread service issue causing authentication issues, email delays and failures, and various other issues for…
  10. OpenAI confirms ChatGPT outage as users report errors
    — Bleeping Computer

    ChatGPT Work is experiencing a partial outage, and users across multiple subscription plans may be unable to start or continue tasks. […]
  11. ⚡ Weekly Recap: Chinese Spy Proxy, AI Agents Go Off-Task, Router Backdoors and More
    — The Hacker News

    The boring parts caused most of the trouble. A router shipped ready to listen. A fake check turned the user into the installer. Trusted syst…
  12. ValleyRAT Backdoor Hides in Signed Adware That Users Add to Antivirus Exclusions
    — The Hacker News

    The threat actor known as Silver Fox has been observed distributing the ValleyRAT backdoor disguised as a signed Chinese adware application,…

Generated by HiveNet.ai Threat Intelligence Platform · September 1, 2026 · Sources: The Hacker News, Bleeping Computer, Krebs on Security, Dark Reading, SANS ISC