I'm curious, what exactly does jailbreaking change? I hear it removes system restrictions, but what's happening in the background? I'm also worried about security risks—how serious of a threat is it? What do users usually want to access with it?
What is a jailbreak and how does it work?
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Buddy, jailbreaking is kinda like flashing a proper Android custom ROM. Just like we do with ROMs, it bypasses signature checks to access the root directories of the system and disables the restrictions put in place by the manufacturer. For example, you can sideload tweaks that aren't in Apple's App Store or stop iOS from automatically installing system updates in the background. You know, since the Android AOSP project is open-source, anyone can modify the system however they like, and jailbreaking brings a similar kind of freedom to iOS.
As for security, it’s like eating a few extra slices of cheesecake—it might taste great, but it can also give you a serious case of indigestion. By removing the signature checks, you’re opening the door for malware to sneak into the system, and you’re the one installing these tweaks. After a jailbreak, your device loses the system that automatically signs apps downloaded from the App Store, so malware can waltz right in. It’s kinda like using an Android ROM that’s missed its security patches—after every jailbreak, you gotta wait for Apple to release fixes for the new "zero-day" vulnerabilities that pop up.