An upgrade to Quova's Internet-mapping technology will now trace the IP addresses of the 33 million AOL subscribers down to their country, city and state.
Microsoft has updated its privacy policy promising to remove the Internet Protocol (IP) address and other identifying data associated with Web searches after 18 months.
Five Internet Service Providers have been recruited by the government to hunt down virus-infected computers used to send spam or launch DDoS attacks from Australia.
Security researcher Dan Kaminsky has offered more details about a fundamental flaw in the Domain Name System and the extent of the vulnerability.
The first attacks that are likely to have stemmed from a serious Domain Name System flaw have been reported.
As VoIP becomes more prevalent, its popularity will undoubtedly attract some unwanted attention -- spammers and phishers looking for their next scheme. Here is a look at some common forms of VoIP abuse, including VoIP spam and caller ID spoofing, and how you can fight back.
Have you ever wondered just how much "junk" Internet traffic is costing your company? One of Jonathan Yarden's coworkers recently tasked him with finding out. In this case study, learn how he went about gathering this information, and see how unwanted traffic affects his organisation's bottom line.
Many network administrators new to Linux find it hard to transition from a point-and-click security configuration interface to one based on editing complicated and hard-to-locate text files. Here are seven easy things administrators can and should do to make their Linux server more secure and significantly reduce the risk they face.
Can a Pringles can be used as an antenna by hackers? Answers to this and more in our special wireless guide. Additional reading: The connection conundrum: 3G or Wi-Fi?
Universities are looking for ways to protect networks while maintaining a free flow of data and ideas -- an idea businesses could learn from.
ZoneAlarm Pro 5.5 is the best software firewall available to PC users today.
D-Link's DCS-5300G is no real match for a dedicated wired and monitored solution, but it's also nowhere near as expensive.
Once simply alarm systems for the network, Intrusion Detection Systems have evolved to encompass a whole lot more. We review six sophisticated security devices.
The spread of convenient wireless LANs has delighted hackers, who find many WLANs vulnerable. Managing and securing a wireless network is therefore vital, but rarely done well. ZDNet Australia compares the offerings from AirDefense and AirMagnet.
Until recently, it's been difficult to use the words "secure" and "wireless" in the same sentence. Recent developments mean that's no longer the case. We look at six different options.
History of British PCs
The cash-strapped UK National Museum of Computing is home to an exhibition of the evolution of British PCs.… Watch it now
In this exclusive video interview, Optus chief information officer Lawrie Turner speaks to ZDNet.com.au about being the IT head for Australia's number two telco.
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