Throughout 2015, prosecutors in the United States argued for the U.S. government to be able to compel decryption of iPhone contents.[247][248][249][250] After the 2015 San Bernardino attack, the FBI recovered an iPhone 5C that was issued to one of the shooters by his employer, and iCloud backups of that phone from a month and a half before the shooting. (The shooters had destroyed their personal phones.) The U.S. government attempted to obtain a court order under the All Writs Act compelling Apple to produce an IPSW file that would allow investigators to brute force the device passcode.[251][252][253] Tim Cook responded on the company's website, outlining a need for encryption, arguing that if they produce a backdoor for one device, it would inevitably be used to compromise the privacy of other iPhone users.[254] On February 19, Apple communicated to journalists that the password for the Apple ID for the iPhone had been changed within a day of the government obtaining it, preventing Apple from producing a workaround that would only target older devices.[255] See FBI–Apple encryption dispute.