Dozens of email accounts at the Treasury Department were compromised in a massive breach of U.S. government agencies being blamed on Russia, with hackers breaking into systems used by the department's ...

(Reuters) - The FBI is investigating a mysterious postcard sent to the home of cybersecurity firm FireEye's chief executive days after it found initial evidence of a suspected Russian hacking ...

The U.S. Securities and Exchange Commission (SEC) charged four major companies — Unisys Corp.(NYSE:UIS), Avaya Holdings Corp., Check Point Software Technologies (NASDAQ:CHKP) and Mimecast — with ...

The SolarWinds hack was more than just one of the most devastating cyberattacks in history. It was a major breach of national security that revealed gaps in U.S. cyber defenses. These gaps include ...