On February 16, 2016, the Act was invoked again in an order that Apple Inc. create a special version of its iOS operating system, with certain security features removed, for Federal law enforcement officers to use as part of an investigation into the 2015 San Bernardino terrorist attack. The head of the FBI stated that what was requested was that Apple disable the iPhone's feature which erases encrypted data on the device after ten incorrect password attempts. Apple claimed that complying with the order would make brute force password attacks trivial for anyone with access to a phone using this software. Apple CEO Tim Cook in an open letter warned of the precedent that following the order would create. On the same day, the Electronic Frontier Foundation announced its support for Apple's position. Several public figures have joined the debate.