Bitcoin address are a combination of alphanumeric numbers, and as such, how lengthy or short it is does not guarantee safety, but what determines the safety of a Bitcoin wallet is the type of its wallet host, such as either a custodial or non custodial wallet, as it has been proven that the most secure Bitcoin wallets are non custodial wallets such as Electrum and Bluewallat, where individuals could have access to the private key to their funds.