If someone can guess the password and find your address seed, then that person can do as they wish with the coins in your coin address. That's what I know from what I've tried to make an address on one of the wallets and that's what I've read.
Someone can only try to guess the password to your wallet file if they have the device where your wallet file is installed, so as you use a strong password for your wallet, also use a strong PIN for your device, so that no person can gain access into your device. Addresses don't have their individual seed, what they have is keys, but with hierarchical deterministic wallets, multiple addresses are gotten from a seed phrase, and with that seed phrase your addresses and their keys can be imported locally by whoever has it and be spent.