The FBI has a history of abusing search warrants to illegally read Americans' emails. Did the agency just do it again, in the highest of all high-profile situations?
We don't expect our own government to hack our email – but it's happening, in secret, and if current court cases go badly, we may never know how often.
Bad guys or law enforcement could hack into our networked gadgets to spy on everything we do – and it's not clear how a laptop's video camera or an Amazon Echo fits within wiretapping laws.
PIN codes, passwords, swipe patterns and biometrics can help secure your smartphone, but they're far from foolproof.
Insecurity by design, as the FBI or UK government would have it, is pouring petrol on an already raging fire.
The FBI has accessed the data on a shooter's iPhone. What if the device had been running Android?
Philosophically speaking our smartphones could be seen as an extension of us. But where does that leave us legally?
The court order to Apple is consistent with the existing law and previous Supreme Court decisions.
Apple's refusal to back down in its fight with the FBI is a sharp reversal from just a few years ago when it was the government urging tech companies to do more to protect consumer privacy.