Security

Nations vow to combat ransomware at US-led summit

Over two dozen nations resolved Thursday to battle collectively against the global and escalating threat posed by cyber-extortionists, following a Washington-led anti-ransomware summit.

Automotive

US regulators seek answers from Tesla over lack of recall

U.S. safety investigators want to know why Tesla didn't file recall documents when it updated Autopilot software to better identify parked emergency vehicles, escalating a simmering clash between the automaker and regulators.