Transport Layer Security (TLS)

What is Transport Layer Security (TLS)?

TLS (Transport Layer Security) is a cryptographic protocol that encrypts data sent over a network, keeping it private and secure between systems.

TLS is the successor to the older SSL (Secure Sockets Layer) protocol, and the two terms are often used interchangeably. It is the technology behind the padlock icon and "https" in your web browser, and it also secures other services such as email.

How does TLS work?

When two systems connect using TLS, they perform a "handshake" to agree on encryption settings and exchange keys. Once established, all data sent between them is encrypted, so that anyone intercepting the traffic cannot read it. This protects sensitive information such as login credentials and personal details from eavesdropping.

What is TLS used for?

TLS secures a wide range of internet communications, including web traffic (HTTPS), email transport, and VPN connections. For email specifically, TLS is commonly used with SMTP to encrypt messages as they pass between mail servers.

TLS and MIDAS

Our MIDAS scheduling software uses TLS when sending email via SMTP, encrypting the connection to your mail server so that booking confirmations and other messages are transmitted securely. TLS also secures access to cloud-hosted MIDAS booking systems over HTTPS.