> But what unpatched security flaws have been reported in older versions of iOS that would allow an attacker to install a keylogger or otherwise exfiltrate user data?
I haven’t been able to find an untethered Jailbreak for iOS 5 - ie a method for an unsuspecting user to have his iOS device compromised.
A “tethered jailbreak” means the user purposefully went through a series of steps to jailbreak thier device or someone else physically got access to thier device.
I don't quite understand what you're trying to say here. The difference between an "untethered" and a "tethered" jailbreak is that an untethered one sticks around after you reboot your phone. So how exactly is this relevant here?
The difference is that an untethered jailbreak takes advantage of a security flaw in the OS that could be theoretically embedded into a website that you visit and your phone could be jail broken without your knowledge.
A tethered jailbreak means that you either intentionally took steps to bypass the security of the OS or someone who had access to your device did.
A “tethered jailbreak” means the user purposefully went through a series of steps to jailbreak thier device or someone else physically got access to thier device.