To prevent data sent over the internet from being intercepted and read, this data is encrypted via the HTTPS protocol. Because the security of this protocol is constantly being increased, there are several versions. Modern operating systems and browsers support the most recent protocol, but older systems rely on older protocols.
It has now been a year since TLS1.0 was no longer considered safe enough and we, too, have disabled this protocol. Now, a year later, the same applies to the TLS1.1 protocol. We intend to disable this protocol on March 15th.
