Just want to share my experience for a week ago.my wallet was hacked by a poor hacker in my opinion because in my wallet not more than $200 and the hacker was hacked only $80 when eth for the gas transaction was run out.very so sad when we waiting for the best price and i will sell it but it was hacked
the wallet is actually hard to hack, in fact I think the percentage is only 0.1%. who is in full control is us, of course we only know the private key / mnemonic of the wallet. so in my opinion it's also your fault in securing a private key. This sensitive thing also happened to me about 1 year ago
Every wallets out there are definitely strong and secure.
Regarding his case, it looks like he previously visited a phishing site where he accidentally entered his private key.