iStock_000037217352_SmallThe FBI was able to find a successful avenue to access one of the San Bernardino’s iPhones, but the tool used to achieve access is not valid for the newest models.

FBI Director James Coney said the undisclosed method will not work with recent iPhone models, including the 5 and 6 generations.

“We have a tool that works on a narrow slice of phones,” Coney said.

Coney also explained the FBI has not reached a definitive decision about whether they will disclose the method of access to Apple.