totally Erase Your iPhone’s knowledge there’s at the moment no Apple-supplied strategy to securely erase your iPhone’s knowledge, and previous owners’ knowledge has been discovered on refurbished phones on sale at Apple. if you want to make your iPhone safe for resale by using securely wiping any trace of your individual information from it, it’s that you can think of—although no longer simple. security man Jonathan Zdziarski posted his way for doing so, which requires jailbreaking your telephone (here’s how), then getting shell get entry to to its exhausting
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