Two-factor authentication (2FA), also known as two-step verification, is a crucial security measure that adds an extra layer of protection to your Wallet. It is a user-friendly tool that should always be utilised whenever available.
How does 2FA work?
When creating your Blockchain.com Wallet, you set a password and receive your wallet identifier (Wallet ID), which are the primary credentials for accessing your wallet. Enabling 2FA adds a third credential: a unique one-time use code that is required for successful login attempts. Each login generates a new code.
2FA options include using the Google Authenticator app, a Yubikey hardware device, or receiving SMS codes to your mobile number.
Why do you need 2FA?
2FA prevents unauthorised access to your wallet even if someone obtains your password, as they will also need your 2FA code. The code changes with each login attempt and is retrieved from your mobile device or hardware authentication device. Enabling 2FA acts as a powerful deterrent against online attacks, safeguarding your wallet.
Preferred 2FA methods
We recommend Google Authenticator over SMS if you have a smartphone. Google Authenticator generates new login codes locally on your device every 30 seconds. You can download the app from the App Store or Play Store. For those who prefer physical keys, we support and recommend Yubikey by Yubico.
Reliability of SMS code delivery relies on your mobile provider, which can be affected by service outages, causing delays or disabling code delivery. Additionally, there are risks associated with social engineering tactics used to port your mobile number, potentially allowing attackers to receive your SMS codes.
By enabling 2FA, you enhance the security of your wallet and reduce the risk of unauthorised access. Take advantage of this essential security feature to protect your digital assets. Please check out this support article to find out how to set up 2FA.