yes many crypto security systems have been developed, many personal wallets are being conveyed, maybe I just added a little of my knowledge about personal wallet systems such as samurai, metasmak, and of course there are many more security systems in the crypto world.
If you need to log into an exchange to conduct a transaction, you do not own your private keys. Maintaining the security of your private keys is absolutely critical. The first step is to make sure you are encrypting your wallet and keeping a safe backup of your wallet/keys/seed phrase.