The security standard of the hot wallet is comparatively high, as shown by our MetaMask wallet experiences. Some security problems in the past have been eliminated by the developers of the wallet, and a lot has been invested in improving IT security. Above all, the hierarchical-deterministic platform plays a major role when it comes to security, as our MetaMask wallet test shows.
Most users have it in their own hands to further increase MetaMask wallet security by installing virus protection on their computers and detecting possible phishing emails.
Important: Never give the master seed out of your hands and keep it safe. This also contributes to the security of the MetaMask wallet.