The FBI may soon be forced to reveal how much money it spent to hack into the San Bernardino terrorist’s iPhone 5c last year.

FBI Director James Comey told the public that his agency paid “more than I will make in the remainder of this job” to unlock the device after Apple refused to help. Now a group of news organizations have asked a judge to force the government to show exactly how much it cost taxpayers.

The FBI has informed Apple of a vulnerability affecting older iPhones and Macs. It’s the first time such information has been shared with Apple by the feds under a White House “Vulnerability Equities Process” intended to disclose security weaknesses when they are discovered.

The Vulnerability Equities Process is designed to act as a balance between the desire of law enforcement and U.S. intelligence services to be able to hack into devices and the public interest in warning companies of weaknesses in their systems that may be exploited by criminals.