# This AI-Developed Computer Worm Could Have Hijacked a Billion Accounts

> Source: <https://au.pcmag.com/ai/119754/this-ai-developed-computer-worm-could-have-hijacked-a-billion-accounts>
> Published: 2026-09-08 16:42:35+00:00

A cybersecurity company used AI to quickly develop a [computer worm](https://www.pcmag.com/encyclopedia/term/worm) capable of hacking over a billion accounts on the Chinese messaging service WeChat.

Palo Alto-based Calif [disclosed](https://blog.calif.io/p/weworm) the already-patched computer worm to warn the public about the threat of AI-driven hacks. …