An Internet service provider in the Middle East asked a security researcher for help in order to regain access to over 15,000 routers it had lost control of. The hardware expert the ISP called for help is Amit Serper, who’s currently leading security research at Cybereason’s Boston branch. Serper says he didn’t hand over the exploit to the ISP, as he was moving to the US, and had no time to deal with the contracts and implementation procedures. The exploit he crafted for the Middle Eastern ISP was a variation on an exploit he put together in December 2015, demoed in a video on Twitter, and included in a presentation named “The internet”””
Source: https://www.bleepingcomputer.com/news/security/isp-asks-security-researcher-for-help-in-regaining-control-over-15-000-routers/