(NEWSER) – The secrets on the phones and hard drive of the San Bernardino shooters, possibly including the names of accomplices or plans for further attacks, may never be unlocked, officials say.

David Bowdich, the assistant director in charge of the FBI's Los Angeles field office, tells Fox News that the cellphones of Syed Farook and Tashfeen Malik are highly encrypted and the couple tried to destroy them. Other sources say FBI investigators still haven't found a missing hard drive. "The digital footprint is incredibly important for us to hopefully learn any contacts, any context, and ultimately any intent on their part," Bowdich says.

Photo: Getty Images

Read the full story on Newser.com