But not all smartphones have a built in cold storage wallet so it can be said to be secure. Most can also have vulnerabilities that hackers can get into to get crypto.
If I remember correctly some companies already tried to build a dedicated secure chip for their CPU, like Qualcomm SPU unit. They can market those features and build a dedicated phone for crypto (some already exist I believe) if they wanted to. But it still doesn't solve the problem that a phone is a phone. Personally, I wouldn't use a phone as a hardware wallet even if they claim it is unhackable due to a secure chip, etc.Changing their mind after the update is just like saying;
Most people definitely lost their trust in Ledger, especially after the latest Atomic Wallet exploit. Who knows, maybe the same thing can happen when Ledger makes their firmware can expose the user's seeds in one way or another. Unless they make everything open source and allow people to verify/develop their own app without relying on Ledger, I wouldn't use or recommend them to others.
