The FBI is requesting that all home and small business routers be rebooted in an attempt to disrupt a newly detected malware called “VPNFilter”. The FBI has assumed control of the server that this malware gets instructions from; if infected, rebooting your personal router will render the malware inert.

More information can be found at the following links.

Overview:

https://www.cnet.com/how-to/the-fbi-says-you-should-reboot-your-router-should-you-explainer/

FBI Warning:

https://www.ic3.gov/media/2018/180525.aspx

Technical Details on VPNFilter Malware:

https://blog.talosintelligence.com/2018/05/VPNFilter.html