Although the email may appear legitimate, it contains malware attachments which, when opened, encrypts files on your computer.
Find out more about this scam and what to do if you think your computer's been infected.
As well as background systems and constant monitoring to help keep your money safe and secure, we have a number of online security safeguards in place.
Our security systems
VbV is an additional layer of security designed to protect you against online fraud whenever you buy goods or services over the internet with your debit card. It's a free service that we'll be providing from March 2011 in conjunction with Visa.
More about Verified by Visa
The threat from fraudsters is continually evolving. The best way to deal with this is to always try and stay one step ahead.
You must protect your computer from unwanted access. In the same way you decide who you allow through the front door of your home.
Protecting your computer