The modern "better" standard is not to rely on the wallet.dat file alone.
: While you can encrypt your wallet with a password, a leaked file gives attackers unlimited time to attempt a brute-force attack offline. indexofbitcoinwalletdat better
In practice, searching for indexofbitcoinwallet.dat yields few legitimate, decryptable wallets with funds. Most are decoys, encrypted, or from abandoned systems. The modern "better" standard is not to rely on the wallet