U.S. sanctions three North Korean-sponsored hacking groups

WASHINGTON (Reuters) - The U.S. Treasury on Friday announced sanctions on three hacking groups it said were sponsored by North Korea that were allegedly involved in the "WannaCry" ransomware attacks and had perpetrated cyber attacks on critical infrastructure.

The groups are commonly known as Lazarus Group, Bluenoroff, and Andariel, according to the Treasury.

(Reporting by Lisa Lambert and David Brunnstrom; Editing by Raissa Kasolowsky)