whereas instant messaging employs the Internet. Text messages are typically limited to 160 characters, but instant messages can be longer. THIS DEFINITION IS FOR PERSONAL USE ONLY. All other ...

ICQ, an instant messaging service that was at one time very popular in the US and other parts of the world in the early days of the consumer PC internet, is officially closing up shop. The ...

It is used for secure web browsing, and encrypts communications through email, file transfer, and messaging. ShadowServer scanned the internet for hosts running a POP3 service on port 110/TCP or ...