https://www.bleepingcomputer.com/news/security/fbi-end-of-life-routers-hacked-for-cybercrime-proxy-networks/

The FBI warns that threat actors are deploying malware on end-of-life (EoL) routers to convert them into proxies sold on the 5Socks and Anyproxy networks.

These devices, which were released many years back and no longer receive security updates from their vendors, are vulnerable to external attacks leveraging publicly available exploits to inject persistent malware.