NSA Can Hide Spyware in Hard Disk Firmware | Re/code

Something to be said for persistence... See How “omnipotent” hackers tied to NSA hid for 14 years—and were found at last (Ars Technica) for a detailed overview.

"The U.S. National Security Agency has figured out how to hide spying software deep within hard drives made by Western Digital, Seagate, Toshiba and other top manufacturers, giving the agency the means to eavesdrop on the majority of the world’s computers, according to cyber researchers and former operatives.

That long-sought and closely guarded ability was part of a cluster of spying programs discovered by Kaspersky Labs, the Moscow-based security software maker that has exposed a series of Western cyber espionage operations."

NSA Can Hide Spyware in Hard Disk Firmware | Re/code