Qatari news broadcaster Al-Jazeera -- sometimes called the Arab CNN -- has again been hit by hackers, with its computer network compromised by trojans causing Denial of Service (DoS) attacks on its global customer base, including in Australia.

The USA is responsible for 15 per cent of all junk mail, says a Sophos report.

Forgetting the hype for a moment, the Internet *is* a dangerous place. In the Internet age complacency is one of the greatest dangers facing business. While many companies assume that viruses an

Got a PC riddled with more viruses than a bus driver’s armpit? The PC Authority Labs team has tested 10 leading anti-virus packages to see which ones really deliver the goods and keep your PC clean.

Traditionally firewalls were the bastion of large, publicly accessible networks to keep hackers out. But in a world connected by the Internet, every machine hooked up to it becomes publicly accessible, and so it's vital that every machine is equipped to protect itself, and the network it may serve, from attack.

Signature-based security unable to cope with 'zero-minute' threats.

Id like to end with one final topic. It doesnt matter how you look at it, the Internet is a fairly hostile place. With the rise of the IP address on demand schemes used by most ISPs, its almost imposs

Over 60 new tracks plus more to download means our love affair with Guitar Hero continues. It’s only rock ‘n’ roll but we like it – a lot

P2P site complains to police about 'illegal' tactics.

Bigelows Virus Troubleshooting Pocket Reference provides a thorough review of malware (that is, malicious software).

Shoot 'em ups 'not to blame', says American Sociological Association.

Pair break code used on half of all wireless traffic.

KinderStart action ruled 'factually baseless'.

Windows Vista is here, but does Microsoft’s ground-breaking OS live up to its promise? We put Vista through an extensive road test.

In recent years, broadband Internet connections have grown exponentially in popularity as major providers have raced to extend the coverage of cable and ADSL connections to suburbs across the country.

Boffins use arcade game to research fight or flight reflex.

Will a beefed-up firewall, User Account Control and disk encryption make Vista a safer choice than XP?

Do you have a business or are in charge of a business’ tech security? Get some tips from PC Authority’s experts.