Safe to store Mnemonic Seed on Offline Phone?

[21XO]

If you’re paranoid about your 24 word seed being compromised, would it be safe to put it on a pin protected iPhone/Android that you never take online?

Future thanks to all the replies!

[goinmerry]

If you’re paranoid about your 24 word seed being compromised, would it be safe to put it on a pin protected iPhone/Android that you never take online?

Future thanks to all the replies!

For being a paraniod, why not? Even you take that online it will not be compromised.

The only downside here is when you lose that phone, got wrecked or experienced a system and program failure.

[AdolfinWolf]

If you’re paranoid about your 24 word seed being compromised, would it be safe to put it on a pin protected iPhone/Android that you never take online?

Future thanks to all the replies!

Yes. If there is no data in or output, and you're certain of that, it should indeed be 100% safe to store your seed on. I do however would still recommend to keep another paper with your seed in a safe or something, incase your phone breaks down..

If you’re paranoid about your 24 word seed being compromised, would it be safe to put it on a pin protected iPhone/Android that you never take online?

Future thanks to all the replies!

For being a paraniod, why not? Even you take that online it will not be compromised.

The only downside here is when you lose that phone, got wrecked or experienced a system and program failure.

There's a chance, especially with android phones that you could get hacked by simply being online with an outdated operating system, and that your data will be compromised.

[bob123]

If you’re paranoid about your 24 word seed being compromised, would it be safe to put it on a pin protected iPhone/Android that you never take online?

It doesn't make sense to me to store a 24 word seed on an (always offline) mobile.
If your goal is to have a full offline backup, why not store it on paper? Or an USB-stick / SD card ?
There is way too much 'technology' in a mobile to be 100% sure its completely offline.
Especially for backing up information in form of 24 words.

If you want to increase the security of your offline backup, then use a simple storage device and encrypt your seed phrase with a pin/password.
Even better would be a (correctly generated) paper wallet or a hardware wallet. Those two would give you the 'highest grade' of security.

[buwaytress]

It doesn't make sense to me to store a 24 word seed on an (always offline) mobile.
If your goal is to have a full offline backup, why not store it on paper? Or an USB-stick / SD card ?
There is way too much 'technology' in a mobile to be 100% sure its completely offline.
Especially for backing up information in form of 24 words.

If you want to increase the security of your offline backup, then use a simple storage device and encrypt your seed phrase with a pin/password.
Even better would be a (correctly generated) paper wallet or a hardware wallet. Those two would give you the 'highest grade' of security.

Got to agree with Bob here. There's too much I don't know about a lot of devices to trust them completely. Unless technology's really advanced beyond the human propensity for negligence, I recall it's even possible to clone a phone via Bluetooth or some other wireless method (I know this doesn't mean 100% offline, but for most people online simply means connected to Internet). Most corner shops in my country also can unlock a pin protected phone in minutes.

This also doesn't take into account the average lifespan of mobile storage, which simply isn't built to last as long as an actual device built for data storage.