system
Given the following post, respond as if you're commenting on Reddit:
human
Safe to sell an iPhone after a factory reset?

Hey all,

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I'm looking to sell my old iPhone 8 as I'm upgrading to a new phone. How safe is this? I use my phone for everything. Email, banking, web surfing, facebook, google authentication, etc. Is a simple factory reset enough to know that whoever I sell it to wont be able to get access to my old data?
gpt
A factory reset is completely secure. All data stored on an iPhone is encrypted, and a factory reset wipes the encryption keys clean. Without those keys, there’s no feasible way to recover the data. There’s no need to overwrite the entire storage.