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What is TLS?

Transport Layer Security (TLS) is an encryption protocol that devices use to protect the data they send over a network. TLS helps to keep your data safe and protects it from attackers.

For example, when your POS device sends data to our gateway, your POS device uses TLS to encrypt the data. Our gateway then uses TLS to decrypt the data.

Diagram of TLS between the cloud and computer

Note: Both devices must use TLS for this to work.

There are several versions of TLS, you must use versions 1.2 or 1.3 as they are most up to date. TLS 1.0 and TLS 1.1 are no longer considered to be secure. If your terminal or POS uses TLS 1.0 you cannot run transactions.

How should my business use TLS?

Any of your devices that send or process sensitive card data must use TLS, these devices can include the following:

  • Computers
  • POS devices
  • Card terminals
  • Virtual terminals
Diagram of TLS between the card terminal and POS

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