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Si vous accédez à l'internet au moyen d'un modem haute-vitesse, vous devriez avoir un coupe-feu (firewall).

Lectures suggérées

E-mail spam: How to stop it from stalking you

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Home computers targetted more by hackers
January 3, 2002

WASHINGTON (CBC)- Internet experts say computer hackers are increasingly targetting home machines because they are more powerful and less secure. Hackers can write programs that attempt to crack into your computer, get your identity, destroy your data or use your computer to launch attacks on Web sites or your friends.

"Home machines weren't very interesting targets a few years ago. That's all changed now, " says Mikko Hypponen who runs an anti-virus company in Finland.

Experts say hackers are attracted to home computers for several reasons:

they are now just as powerful as business computers, with enough memory and processing power to make them perfect staging areas for Internet attacks
a growing number are connected to the Internet though high-speed lines that remain open all the time. Computers left on around-the-clock are vulnerable
home users are slow to secure their computers with the latest anti-virus and firewall software
home users tend to be unaware of the latest Internet threat and will more likely open unsolicited e-mails
"Home users have been the least prepared to defend against attacks," says a warning from the Computer Emergency Response Team (CERT) Center located at Carnegie Mellon University.

INDEPTH: The Anna Kournikova Worm

Viruses and worms make up a majority of new threats to home computers. In the past year, home computers have been infected by programs such as Code Red, Nimda, and Anna Kournikova, which are primarily spread through e-mail.

A virus is a malicious program that may delete files, or it could simply try to overwhelm a network by copying itself.

INDEPTH: The Nimda Worm

Anti-virus firms reported at least one virus per 370 e-mails in 2001, double the rate of the previous year. And the potential damage is growing.

Virus writers are now more likely to imbed programs that spy on users or steal their identity by accessing private files. They'll use your e-mail address book to infect the computers of friends.

Computer experts say users need to make computer maintenance as routine as locking their house. Home users need to update their anti-virus and Internet firewall software against the latest threats.

They need to check Web sites such as CERT's to find out the latest news and to download free software to protect their home machines.