Security researchers from the Black Lotus Labs at Lumen Technologies have published a report detailing the 72-hour take down of hundreds of thousands of routers in October 2023. An unknown hacker was able to brick over 600,000 routers from Windstream, an internet service provider, using a malicious firmware update. The routers showed a solid red light, stopped working, and would not reboot. The routers became permanently inoperable, and their hardware had to be replaced. The researchers believe the attack was initiated using Chalubo, a remote access trojan. The motive for the attack is still unclear, and no nation-states have been found to be associated with the incident. 

Read more: https://www.forbes.com/sites/daveywinder/2024/06/02/hacker-bricks-600000-routers-in-just-72-hours/?ss=cybersecurity&sh=24ba677e6320