Bitcoin is a decentralized, peer-to-peer (P2P) payment system that allows the transfer of monetary value without the intervention of a trusted third party such as a bank or government. Bitcoin (BTC) is the digital cryptocurrency or "crypto asset" used in the Bitcoin protocol to exchange value.
Cryptocurrencies
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Dual authentication or two-factor authentication (2FA), is a security process in which the user must provide, in addition to a password (first factor), a second authentication factor such as a text message to verify their identity and access their account. Multi-factor authentication (MFA) requires the user to provide multiple authentication factors before being allowed to log into their account.
A password manager is a vault that allows you to keep all your passwords used on the Internet safe so you don't have to remember them anymore. It stores all your logins and passwords for your online accounts in a secure software as a virtual notebook where you write down all your access codes. You only need to remember one password to access your safe. It is therefore essential to create a strong master password.