Keeping you secure

On the other pages in this safety section we’ve: 

• Given you practical steps to take to secure your devices
• Given you advice on staying safe online, staying safe at home, and staying safe while out and about
• Given you guidance to help you avoid common fraud and scams.  

On this page, you can find out how to keep your My3 account secure and how to secure your voicemail. 

The information on your My3 account and Three app is private – you shouldn’t let anyone else access it.

When you first register on My3 or the Three app, you’ll be asked to set up a password. If you’re using the Three app, you’ll also have the option to use biometric log in for additional security.  

We’d recommend creating a long but memorable password. Combining 3 random words is a great way to do this. You can find out more about creating strong passwords in our device security guide.

Find out more about registering and logging in

You can change your password in My3 by:

• Clicking My3 account in the top right corner of your screen
• Tap Change password
• Enter the email address you log in with
• We’ll send you an email with a link to change your password

And if you’ve forgotten your password, you can reset it by going to three.co.uk/customer-login and clicking Forgot password.

Fast Login lets you check your voicemail without entering a PIN when you call 123 from your phone. It’s turned on by default, but you can turn it off to make your voicemail more secure. Turning it off means your voicemail can only be accessed with a PIN, even when called from your phone. 

To turn off Fast Login:

• Call 123 to access your voicemail
• Select option 4
• Select option 2
• Select option 2
• Finally, select option 1

When you end the call, you’ll always have to enter your PIN to access your voicemail, even when you call from your own phone.  

You can set up or change your voicemail PIN by following these steps:

1. Call 123 from your phone
2. Select option 4
3. Select option 2
4. Then option 1
5. Enter your new PIN – that’s between 4 and 8 digits long, followed by #
6. Enter your new PIN again, followed by #

Your voicemail PIN will now be set up or changed. Your PIN can’t be viewed or accessed by anyone at Three – you’re the only person that knows it. 

• Avoid repeating digits, e.g. 112233
• Don’t use anything obvious e.g. your birthday
• Your PIN should be easy to remember, but difficult for other people to guess
• Change your PIN regularly
• If you think someone’s guessed your PIN, change it as soon as possible.