Control your funds with your own keys
No matter what wallet you are using to hold your funds, a single secret key means a single point of failure.
If your secret key or recovery seed gets exposed, your funds are gone forever.
Reduce the risks with multisignature.
Attacker trying to steal your crypto would need to gain access to multiple secret keys, stored on multiple devices.
Keys that are used to approve transactions with Vault are generated
and stored locally on your device and never leave it.
Look at source code