Bits'n'Bytes

As heard on CJCD

Episode 48

One of the biggest reasons for people to get on the internet nowadays - especially younger people - is to use one of the many instant messaging, or "chat", programs now available. I've had more than one concerned parent claim their children never use the phone to talk to friends any more - they use an instant messaging program, instead.

Instant messaging programs were first created in the '70s for users on the same mainframe to be able to collaborate on projects without having to wait for a reply to an email. They were then developed for use through network connections so users on the same network could talk and share work. Then they were expanded for use on the Internet via console programs like IRC - or Internet Relay Chat. The need for these special console program meant instant messaging wasn't all that popular with typical Internet users like today.

In 1996, ICQ was introduced and in 1997, AOL's Instant Messenger. Then came all the rest, like MSN Messenger, Yahoo Messenger and Skype. All of these programs allow for near instant communication with another user using the same software. Because of the early need for online collaboration, all these programs also allow for file transfers between computers, and most now allow real time voice and even video communication.

Recently, some of the creators of these programs have started to get together so cross-platform communication can happen. This means, for example, that MSN Messenger users can now talk to Yahoo Messenger users without having to download Yahoo Messenger onto their computer. They just add the Yahoo user to their buddy list the same as they would any MSN user.

The problem with instant messaging programs is that they can potentially open up security holes in your network or computer. By adding a malicious user to your buddy list, you are allowing him to potentially transfer files that contain worms to compromise your system and gain access to it. Luckily, most antivirus manufactures have incorporated features in their software to detect and scan files coming in on instant messaging ports.

So, if you're going to indulge in instant messaging, by all means go ahead! But be very sure your antivirus program is up to date and is able to scan your particular instant messaging program.

Stay tuned next week when I talk about passwords and your computer.

I’m Computer Dave, thanks for your time.