The FBI reportedly bought a previously unknown security bug from a group of professional hackers to gain entry to the San Bernardino iPhone 5C, according to the Washington Post. The report suggests hackers supplied at least one so-called zero-day flaw in the iPhone 5C’s security that allowed the FBI to circumvent the lockscreen and automatic wipe feature that kicks in after 10 wrong passcode entries.

The hack meant the FBI dropped its attempt to force Apple to create software to unlock the iPhone 5C, which the company said would put all iPhones at risk.

FBI Paid Professional Hackers to Gain Access to San Bernadino iPhone – Report