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For advice on security at home, visit the Microsoft Security Essentials site
We employ a set of technologies to ensure maximum security for our clients.
Communication between you and our service provider Blue Square is encrypted using the SSL mechanism built into your browser. All of your personal information, including credit card number, is encrypted so that it cannot be read as the information travels over the Internet (see figure below). This ensures that even if someone were able to monitor the traffic between you and our server, they would not be able to read it. Encryption is used on all pages within our payment system.
1. Blue Square Customer
Our customers log on. Data is encrypted (transaction data) and then sent over the Internet. You can think of encryption as a way to turn text into code, making it unreadable and meaningless.
2. Telephone Switch
At this stage data is already encrypted.
3. Internet
Encrypted data travels over the Internet. Even if someone were able to monitor the traffic between you and our server, they would not be able to read it. Encryption is used on all pages within our payment system.
4. Firewall Computer
This computer sits between the Blue Square Web server and the Internet, providing additional security against non-authorised access.
5. Blue Square Web Server
All your details are stored in the Blue Square Web Server. When data gets here the server decrypts the information (it turns meaningless data (code) into readable data (information).
Once we receive your Card details we carry out an on-line check of your Card with our bankers. This ensures the number you entered actually corresponds to a real credit card number and is not one that has been made up. The system also checks various "Hot Card lists" to ensure that no fraudulent use is being made of a Card. This on-line verification of your details is carried out over a secure line to the bank. Card data is, at no time, sent over the Internet during the validation process.
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