Secure Instant Messaging (SIM) is a type of online communication platform that enables users to send and receive messages in real time over the internet. It is a secure way of communication as the messages are encrypted, ensuring privacy and confidentiality for the sender and recipient. The messages are also stored on a secure server, making them inaccessible to unauthorized third parties. The messages are also not stored on the users' devices, making them more secure. Secure Instant Messaging is used for various purposes such as business communication, personal conversations, and even for conducting sensitive conversations such as those related to health or legal matters. It is popular among businesses due to its convenience and security features, as well as its ability to enable communication between multiple users at once. It also ensures that messages are not intercepted or tampered with. Secure Instant Messaging is a great way to stay connected with colleagues and friends, even when you are not in the same physical space.
Discontinued It appears that the project is no longer being developed since February 2017. The latest version, 1.2.37, released in November 2016, can still be downloaded from GitHub. It is reportedly not working on Ubuntu 18.04.