People examining the core of Apple's iOS 10 preview release were surprised to notice that Apple hadn't bothered encrypting the kernel code this time around, a move most people thought was a massive error it'd fix come proper release time. But no.
Speaking to Techcrunch, an Apple spokesalgorithm said there's no real need to lock up the source of the operating system any more, as all critical personal data is farmed out elsewhere so... what's the point? It also helps developers make things run better, with the hardware giant saying: "The kernel cache doesn’t contain any user info, and by unencrypting it we’re able to optimize the operating system’s performance without compromising security."
So it might help the OS be a little quicker in the future. Not that people ever had really complained. It's more likely been done to help Apple make future claims of transparency in the wake of the fuss surrounding the locking and unlocking of the phone used by the San Bernardino killer. "Hey, we're unlocking everything now! We're the nice guys!" is what it's trying to say here. [TechCrunch via 9to5 Mac]