O'Reilly logo

Security+ Training Guide by Todd King

Stay ahead with the world's most comprehensive technology and business learning platform.

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, tutorials, and more.

Start Free Trial

No credit card required

Recognizing Vulnerabilities and Taking Action—Instant Messaging

Understand communication security in wireless, wired, and application-specific environments.

Instant Messaging (IM) is an Internet service that enables users to communicate in real-time using text messages and to exchange files (pictures, music, and so on) with one another. Although the concept of real-time chat is not new (Internet Relay Chat [IRC] has been around for a decade or longer), average consumers started chatting only when the latest user-friendly programs, such as ICQ, MSN Instant Messenger, Yahoo! Instant Messenger, and AOL Instant Messenger, became available.

IM might prove to be the next killer Internet application, and it might even partially replace email. IM combines ...

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, interactive tutorials, and more.

Start Free Trial

No credit card required