The massive health care hack is now being investigated by the federal Office of Civil Rights

Federal civil rights investigators are looking into whether protected health information was exposed in the recent cyberattack on Change Healthcare.

The Office for Civil Rights said Wednesday that it also will examine whether Change Healthcare followed laws protecting patient privacy.

Change Healthcare provides technology used to submit and process insurance claims — and handles about 14 billion transactions a year.

The investigation was spurred by “unprecedented magnitude” of the attack, Office for Civil Rights Director Melanie Fontes Rainer said in a letter.