The SB case was botched by the FBI. Apple gave them 4 ways to decrypt, but they gambled that they could force Apple to give them a backdoor. They lost. https://www.latimes.com/business/la-fi-tn-apple-fbi-call-20160219-story.html One of the methods here was likely used.
Apple complied with lawful subpoenas, not compelled speech to create backdoors, because of government incompetence.
As above. There’s a difference between unlocking an iPhone and giving access to the iCloud. We publish a report every year about the number of requests made by country, and the number of requests granted.
Just compliance with the law...
.... iCloud has never been protected. The San Bernardino killer’s iPhone was what the FBI couldn’t access, and only because they fucked up the iCloud side and locked it if I recall right.