Somehow I believe these.
If anyone is under control of your money like it is in an account or something, the safety isn't guaranteed. Looking outside crypto, even those who had invested in banks probably aren't even safe. The security admin in it has the absolute control of the data stored in the establishment, and that's why they're really highly paid.
bitcoin is dcentralized and there are also decentralized wallets .
youll choose those so that you can assure that you have a full controll in your coins and your accounts security . but bieng online is not safe . you better secure your coins on a offline decentralized wallet or hardware wallet . i still dont know if you can still hacked but the only threat is how you handle your harware wallet because there are natural accidents where your wallet can be in dangered .