Two-step verification is an optional but highly recommended security feature that adds an extra layer of protection to your Dropbox account. Once enabled, Dropbox will require a six-digit security code in addition to your password whenever you sign in to Dropbox or link a new computer, phone, or tablet.
Before enabling two-step verification, you'll receive a special 16-digit backup code. It is very important that you write this key down and store it somewhere safe. If you ever lose your phone, or can't receive or generate a security code, you'll need this backup code for emergency access to your Dropbox.
1. Sign in to the Dropbox website. Click on your name from the upper-right of any page to open your Account Menu. Click Settings from the account menu and select the Security tab.
2. Under the two-step verification section, click Enable.
3. Click Get started. For security reasons, you’ll be asked to re-enter your password to enable two-step verification. Once you do, you’ll be given the choice to receive your security code by text message or to use a mobile app. After enabling the feature, consider adding a second phone number that can receive text messages as well. If you ever lose your primary phone, you’ll be able to receive a backup security code to that number instead.
4. If you choose to receive your security codes by text message, you’ll need a phone capable of receiving text messages (carrier rates may apply). Whenever you successfully sign in to Dropbox using your password, a text message containing a security code will be sent to your phone. To enable this option:
- Select Use text messages during the two-step verification setup.
- Enter the phone number where you’d like to receive text messages. Click Next.
5. You’ll be sent a security code by text message. Verify your phone number and enable two-step verification by entering this code into the field provided when prompted.
6. You will be given backup code. This is to be used in emergencies to access your account. Print, save or write down this code and keep it safe.
Several mobile apps are also available that will generate a unique time-sensitive security code you can use to finish signing in to your Dropbox account. Any app that supports the Time-based One-Time Password (TOTP) protocol should work.
To use one of these apps:
Select Use a mobile app during the two-step verification setup.
You can choose to either scan the barcode (if your app supports it) or click enter your secret key manually to be given a secret key you can type into the app.
Once your app is configured, you’ll need to enter a security code generated by your authenticator app to verify setup and enable two-step verification.
Most apps will generate security codes even when cellular/data service is not available–useful when traveling or where coverage is unreliable.
For more information visit: https://www.dropbox.com/en/help/363
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