New ransomware attack hits Russia and spreads around globe

The U.S. government has issued a warning about a new ransomware attack that spread through Russia and Ukraine and into other countries around the world.

Cybersecurity experts said the ransomware -- which posed as an Adobe update before locking down computers and demanding money for people to get their files back -- targeted Russian media companies and Ukrainian transportation systems. It has also been detected in other countries including the U.S., Germany and Japan.

The U.S. Computer Emergency Readiness Team late Tuesday it "has received multiple reports of ransomware infections ... in many countries around the world."