If you are a server administrator, disable directory listing (e.g., using Options -Indexes in Apache) to prevent sensitive files from being indexed by search engines. What to Do If You Find an Old Wallet File
Even encrypted files are at risk. Attackers use tools to perform Padding Oracle Attacks or brute-force passwords if the encryption was weakened by older software vulnerabilities. indexofbitcoinwalletdat link
Never store unencrypted wallet.dat files on cloud services or public web servers. Use an encrypted external drive or a dedicated hardware wallet for long-term storage. If you are a server administrator, disable directory
Always set a complex passphrase within Bitcoin Core. Avoid simple passwords that are susceptible to dictionary or GPU-based cracking . Never store unencrypted wallet
To prevent your wallet from appearing in an "index of" search results, follow these security best practices: