South Korea, US issue joint Gunra ransomware warning

Gunra is a type of computer virus called ransomware.

Bad people use it to break into computers and lock up important files.

Then they ask for money to give the files back.

Gunra also copies the files before locking them.

If the owners do not pay, the bad people say they will share the files with everyone.

Police officers in South Korea and the United States worked together to warn people about this virus.

They told companies to update their software so the virus cannot get in.

They also said companies should use extra passwords, like a secret code sent to a phone.

That makes it much harder for bad people to sneak in.

It is like locking your door before a burglar comes.