A Los Angeles hospital has paid 40 Bitcoins, worth roughly $16,700, for access back to its network that was taken down in a type of hack called “ransomware,” at the beginning of February. Hollywood Presbyterian Medical Center began noticing issues with its computer network on February 5.

The ransomware attack held the computer network hostage, and in the case of hospitals, not having access to computer networks for patient data can prove dangerous. Ten days after the attack began disabling the network, it was restored following the ransom payment. It’s not clear how the hackers launched the attack or where the attack originated from.

Hospital pays hackers $17,000 in Bitcoins to return computer network