Internet phone services such as Skype and Vonage could provide a means for cybercriminals to send spam and launch attacks that cripple Web sites, experts have warned.
Dutch police have arrested three individuals suspected of hacking into more than 100,000 computers worldwide and using the hijacked systems in online crimes.
Virus authors are choosing not to create global epidemics -- such as Melissa or Blaster -- because that distracts them from their core business of creating and selling zombie networks, according to anti-virus experts.
Father of the Internet Vint Cerf has warned attendees at the World Economic Forum in Davos that the Iinternet is at serious risk from botnets.
In 2008 the line between cybercrime and legitimate business will blur, Australians will find out just how many data breaches occur, smartphones will attract malware, and people will decide which group is worse: social networking sites seeking to monetise page hits or identity thieves.
Almost a quarter of the world's spam in the last three months of 2005 was sent from computers in the United States, according to UK antivirus company Sophos.
Botnet researchers have found that Microsoft Windows is the preferred vehicle for zombie armies.
In their quest to retain control over hijacked PCs, cybercriminals will add encryption to their malicious software to avoid detection and removal, one expert predicted Monday in the United States.
Two worms based on a recently disclosed Windows flaw have been unleashed, but the attacks so far don't appear to be widespread, security experts said.
"Storm worm", one of the larger Trojan horse attacks in recent years, is baiting people with timely information about a deadly, real-life storm front, security researchers said last week.
The latest variants of the Bagle worm have alarmed antivirus vendors because of the multi-stage process they use to attack PCs.
Authorities are cracking down on phishing and botnets, but the threats are advancing instead of diminishing, two law enforcement officials said.
Internet security experts are gathering at a secretive conference later this week to strategise in their fight against cybercriminals.
An annual survey coordinated by the Australian Computer Emergency Response Team has revealed that electronic attacks on businesses have decreased, but is it all good news?
Almost all of the malware circulating the Internet is written by organised criminals looking for financial gain, experts say, and the problem is set to get worse.
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