Calif — Cyber Attacks, Breaches & Threat Activity

Threat entity extracted from intelligence sources

Frequency
8
occurrences
First Seen
April 1, 2026
Last Seen
September 9, 2026

Related Threat Clusters

  • AI-Driven Discovery of RCE Vulnerabilities in Vim and GNU Emacs

    Researcher Hung Nguyen from Calif used Anthropic’s Claude Code AI to identify zero-day remote code execution (RCE) vulnerabilities in Vim and GNU Emacs. The vulnerabilities allow arbitrary command execution simply by…

    4 articles · Updated March 31, 2026
  • AI-Driven Exploit Bypasses Apple's M5 Security in Days

    Researchers from Calif, a Palo Alto-based cybersecurity startup, successfully exploited Apple's Memory Integrity Enforcement (MIE) on the M5 chip within a week using Anthropic's AI model, Claude Mythos. The exploit…

    28 articles · Updated May 14, 2026
  • AI-Driven WeChat Worm Threatens Over 1 Billion Accounts

    Researchers at Calif developed WeWorm, a zero-click computer worm exploiting a memory corruption vulnerability in WeChat's VoIP stack. This worm can hijack WeChat accounts through incoming calls without requiring any…

    16 articles · Updated September 8, 2026

Recent Intelligence Reports

  • US firm used AI to hijack WeChat account, spurring call for cyber cooperation with China — Scmp · September 9, 2026
  • This AI — Au.Pcmag · September 8, 2026
  • This AI-Developed Computer Worm Could Have Hijacked a Billion Accounts — Uk.Pcmag · September 8, 2026
  • Calif security firm built AI-powered WeChat worm WeWorm — Qz · September 8, 2026
  • Security researchers discover flaw in Apple's Mac security using Mythos: WSJ — Ground.News · May 15, 2026
  • Anthropic's Mythos is already finding security flaws in Apple software — Mashable · May 15, 2026
  • Mythos pops Job's Mob's security balloon — Fudzilla · May 15, 2026
  • Vim and GNU Emacs: Claude Code helpfully found zero — Csoonline · April 1, 2026

CVSS v3.1 Breakdown