Ask HN: Do Crypto DAPP Apps have any security protections?

My elderly friend was recently scammed out of a large sum of money using DAPP apps inside Coinbase Wallet .

During the inventory I noticed the DAPP used was unsigned and untrusted. Coinbase Wallet doesn’t seem to provide any Trust validation. A warning dialog “be sure you trust this app they can steal your money” is the only protection .

Is there any way to secure, authenticate and trust DAPP Apps?

And what can we do to recover these funds? He lives on a fixed income.

(My friend has learned his lesson – yes we know this was a big mistake)