Comment by nativeit

4 hours ago

Don’t they have standard Linux security? Does my phone need to be more secure than my production web server?

There isn't a standard Linux distribution. Those operating systems have drastically worse security than a decent server distribution or the mainstream mobile Linux. They don't have a proper privacy/security model for running applications. AOSP is a Linux distribution with drastically improved privacy and security compared to a traditional desktop Linux traditional. GrapheneOS starts from there and improves privacy and security much further.

Linux security is quite bad. Android tries to improve this and GrapheneOS improves it even farther than that.

Which device you need to be more secure depends on your needs and which device you put sensitive data on, but a mobile device is going to provide far better privacy and security than any desktop hardware or OS is currently capable of.