I have been getting these comments often here, including concerns about my non existent backend's security.

Last time, when I pointed out that the attack surface for mobile apps is typically very small, some users started to talk about zero day vulnerabilities in the OS's media handling, as if it was a concern for my app implementation.

I found the concerns again wildly overblown.

But what if someone discovers a iOS 0day worth several million dollars and burns it to compromise your app specifically? /s