A Russian malware system has infected hundreds of thousands of routers. To combat the malware, the FBI published a public notice requesting homes and businesses to reset their routers.
The FBI recommends that owners of small office and home office routers reboot their devices. Foreign cyber actors have compromised hundreds of thousands of home and office routers and other networked devices worldwide. The actors used VPNFilter malware to target small office and home office routers. The malware is capable of performing multiple functions, including possible information gathering, device utilization, and blocking of network traffic.
You can read the full statement here from the FBI.
The New York Times reports that the Sofacy Group is behind the malware attacks. Also known as A.P.T. 28 and Fancy Bear is believed to be connected to Russian intelligence.
The easiest way to protect your Internet connection is simply to restart your router. Updating the router's firmware and changing the password also help secure your device.