An Oracle wallet is used to store certificates for Listeners with https protocol or as an encrypted password store for Oracle logins.It is an encrypted, password-protected PKCS#12 container file that can be accessed with openssl tools.Storing credentials in an Oracle wallet is a proprietary extension from Oracle.Different types of Oracle wallets include normal, auto_login, auto_login_local, and auto_login_only.Auto_login wallets allow for non-interactive logins without a password prompt.The auto_login_only wallet does not have a PKCS#12 container and allows access without a password.Wallet types can be determined by analyzing the content using octal dump (od) utility.Converting wallets between auto_login and non-auto-login types is possible with orapki commands.Ensure filesystem permissions are secure and restrict access to wallets for better security.Auto_login_only wallets are suitable for storing trusted certificates for client-connects.