Gmail: how to protect your account using two-factor authentication

Your mailbox is a valuable resource for personal data. It often archives e-mails dating back several years, important documents such as scans of identity cards or passports, or sometimes precious purchase invoices that it is necessary to keep in the event of a problem. call on the warranty.

But if you’ve been using your Gmail account for several years without really considering security, it is highly recommended that you change this bad habit and go take a look. You will probably first need to change your password, which is a bit too easy to remember to secure your account with a complex password, but above all to set up double authentication.


This additional security will therefore require you, when logging into your account, to validate the connection using an additional code. Carefully follow the lines that follow to make your Gmail account as secure as possible.

1. Change password

Start by changing your Google account password. No, abcd1234 is not a good password. Overall, a password that you can easily remember is a bad password. Prefer the use of a complex password, rather long, mixing numbers, letters, capitals and special characters.


Most password managers, including the one integrated into Google Chrome, include a function allowing the random generation of complex passwords. Choose one and do not hesitate to use a password manager to secure your passwords on all your devices. It will take care of remembering your username and login passwords for you. You will then have only one password, the master password, to remember to access your entire keychain.

To change your login password on your Google account (and by extension Gmail), go directly to this address: Then click on Password and validate your connection to access the page allowing you to modify your password.


Enter your new password in each of the fields and validate the modification by clicking on change the password.

2. Download the Google app on your smartphone


Before activating two-factor authentication on your Google account, download and install the Google app on your smartphone and sign in to your account from it. It is, in principle, installed by default on Android, but not on iOS, and will be essential for the future.

Download Google for Android (Free)
Download Google for iPhone (Free)


3. Enable two-factor authentication

One of the solutions offered by Google to secure your account is to activate two-step verification. Also known as two-factor authentication, this protective measure adds an extra step when you log into your account. When you have entered your username and password, you will, for example, be asked to validate from another device, generally your smartphone, the connection to your account from your computer. Thus, even if a malicious person has knowledge of your username and password, they will not be able to validate their connection to your account, not having access to the second means of authentication.

To activate two-step verification, go directly to the page


Scroll through the options, then in the section Log in to Google, click on Two-step validation.

The following page displays explanations of how this procedure works, then click on To start and identify yourself to access the procedure.


In principle, if your Google account is connected on other devices, Google detects them automatically. Then click on the button Continue.

If no device is displayed, you can click Show more options to select another validation solution (physical security key, or code sent by SMS).


Google should then offer you to test the two-step verification.

If you’ve installed the Google app on your smartphone and your account is connected to it, you should have received a notification. Open the Google app on your iPhone or Android smartphone.

You should see a page indicating that You are trying to sign in to your account from a computer. You will only have to press the YES button to confirm the connection to your account on your PC.


From now on, every time you log in on a new computer (or when you use private browsing, or you have deleted all cookies from your web browser), your Google account login will need to be validated as you come. to do.


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