Many DNS servers are wrongly configured or running out-of-date software, leaving them vulnerable to malicious attacks, according to a survey published on Monday.
Antivirus firm Trend Micro is warning of an almost exact replica of the Yahoo Photos Web site that has been designed to steal identities and could infect a user's PCs with malware.
In response to a heightened security alert, Microsoft has updated its customer advisories for protecting its server software against DNS cache poisoning attacks.
Online thieves looking for personal data may be moving to more active measures by redirecting people from legitimate sites to malicious ones, security experts said this week.
The attack that blacked out Google, Yahoo and other major Web sites earlier this week involved the use of a "bot net"--a large network of zombified home PCs--Internet infrastructure provider Akamai Technologies said Wednesday.
special report Phishing attacks may have slowed, but their sophistication is increasing at a rapid pace.
A security organisation published its fourth annual list of the most vulnerable software on Wednesday, putting network administrators on notice that they need to check their systems.
Because networks increase the number of interdependencies among machines, they tend to magnify problems. As the saying goes, "Networking is when you can't get any work done because of the failure of a machine you have never even heard of."
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