General Security FAQs

Questions about your online security

What if I think someone knows my Tesco Bank Online Banking or Mobile Banking App security details?

You must contact us immediately and change your Tesco Bank security details straight away.

    What if I forget or lock my Tesco Bank security details?

    If you've forgotten your existing details or you’re locked out of Online Banking or our Mobile App, you can reset them online. We may need to send you a Temporary Security Number by text or post to make sure it's really you.

      What should I do if my phone is stolen?

      Call our Online Helpdesk immediately so that we can block our Mobile App being accessed on your stolen phone. If you suspect that someone else knows any of your login details don’t worry, we can reset them when you call.

        How do I change my Tesco Bank security details?

        Changing your security details is easy, just log in to Online Banking and choosing Manage Security Details on the Online Banking overview or contact us.

          What if I'm asked for my Tesco Bank Online Banking security details?

          Once you've registered, we'll never ask for all your security details when we contact you.

          If you ever receive a request for all of your details at any time (by email or otherwise), don't give them out and report it to us straight away by emailing

          You'll never be asked for your security details or your PIN by online retailers, so you should never disclose them, even to the police or other security agency.