Strong customer authentication (SCA)
SCA provides extra layers of security when you buy things online or make transactions through your Online Banking.
When a payment requires SCA we use two types of authentication out of three possible options, also known as two-factor authentication. These are:
- something you know (e.g. security number)
- something you have (e.g. card or phone)
- something you are (e.g. fingerprint or face recognition).
How we’ll ask to make these checks
If your payment requires SCA then in some circumstances we may perform checks using information we have available, or we may send a One Time Passcode (OTP) to your registered mobile phone number to verify your online card payment.
Please make sure that your mobile number is up to date and that you have your mobile phone to hand when making payments online. If you need to update your mobile number, you can call us on 0800 085 0937 to do this.
Card not working or payment declined?
There may be other reasons why your card isn't working online. Please contact us if you need any support.
One Time Passcodes (OTP)
We use OTPs to authorise certain transactions. Your OTP acts as a secure key to your account, helping to stop anyone but you authorising transactions on your account.
When we need you to authenticate a transaction, we’ll send an OTP to the mobile phone number you’ve registered with us. Each OTP is unique to the transaction you've made. You’ll enter it on screen as part of an online card purchase, or, for example, when you’re registering for our Mobile Banking app, so that we know it’s you.
Please always review the full OTP message, checking it accurately describes your transaction. Never share your OTP with another person, not even a Santander employee. It’s fraud if anyone asks you to tell them your OTP.
OTPs usually reach your phone within seconds (or a little longer if your network coverage is weak). You can still get OTPs abroad if your mobile allows global roaming. Please check with your network provider to confirm availability and charges. You're not charged for receiving an OTP.
Update your registered OTP number to your new number
You can call us on 0800 085 0937 to update your mobile number. As OTPs are individual to each user, the person whose contact details have changed will need to contact us themselves.
What to do if you receive an unexpected OTP
If you get a One Time Passcode when you’re not making a transaction, it’s likely to be fraud. Call us straight away on 0800 085 0937 and don’t share the code with anyone, either on the phone, in person, or online.
If someone phones and tells you to expect an OTP and to read it to them, it will be fraud. Never share your OTP with another person, not even a Santander employee.
Here are some examples criminals may use to try and persuade you to give them your OTP:
- they need to refund your account
- they need to secure your account
- they need to stop a payment.