Answered By: Rozz Evans
Last Updated: Jul 18, 2017     Views: 47

The design of the access card contains your unique ID number which is encoded and encrypted within the micro-chip contained within the card similar to how personal bank cards and oyster cards work. So far as it is known our access / ID cards are not affected if kept next to bank cards. However, should you have an oyster card it is recommended that you keep it separate from your access / ID card i.e. the two should not be kept adjacent to each other as they are known to cause interference with each other and it is possible that one or both of the cards could fail to function correctly.

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