Indexofbitcoinwalletdat Link -

In the context of Bitcoin Core , the wallet.dat file is the primary database that stores:

If you do not want to download the entire blockchain, you can extract the private keys directly to import them into a "lightweight" wallet like Electrum: indexofbitcoinwalletdat link

Enable two-factor authentication where available and use strong, unique passwords. In the context of Bitcoin Core , the wallet

Assume the file has already been downloaded by automated bots. Create a completely new wallet on a secure, offline device and transfer your entire balance there. In the context of Bitcoin Core