[PIF]

As far as Apple boxes are concerned, the problem was fixed in OS 10.13.2 High Sierra; iPhones need physical access to be compromised.

[Vinnie]

Aw, I’m running 10.10.5 Yosemite and have been reluctant to upgrade. Heard Hi Sierra can really slow down an older machine.

[Swordmaker]

As far as Apple boxes are concerned, the problem was fixed in OS 10.13.2 High Sierra; iPhones need physical access to be compromised.

Thanks PIF for posting this reply. . . but it needs more information. Let me add to your comment:

iPhones need physical access AND THE USER'S PASSCODE, plus an Apple Certificated malware designed to rewrite the firmware app on the Apple App Store, to be compromised.

You had it almost correct on the iPhone/iPad part of it. . . and that is for the completely different mode of attack of the "Spectre" malware which affects Intel, AMD, and ARM based processors.