Saving Bitcoin in a wallet for a long time is there any risk? while for long-term investment I have to keep it in my wallet. Please advise...
Welcome to Bitcoin.
Safe isn't based on the wallet, it's based on your ability to protect your bitcoin. In this world you become yoir own bank.
What walkets are you considering? It matters.
Also, you shouldn't just put Bitcoin in a wallet, forget about it for 20 years and assume all will be good. You need to be an active participant in the protection of your hatd earned bitcoin.