Malware authors targeting websites have begun trading quantity for quality, according to web security firm Websense.

A Venezuelan man pleaded guilty in New Jersey federal court on Wednesday to hacking into the networks of voice over internet protocol (VoIP) providers and reselling internet-based phone services for profit, according to the U.S. Attorney's Office.

Cybercriminals behind the Waledac botnet have begun using a New Year's-themed campaign to capture more victims, security experts warned on Thursday.

Computer security researchers say they have cracked the encryption algorithm used to protect most cell phone communications, potentially allowing attackers to listen in on the calls of billions of individuals.

Cybercriminals are still making large sums of money by pushing spyware and pharmaceutical spam, but internet fraudsters will leverage banking Trojans and other web exploits, particularly on social networking sites, for far greater returns in the future, according to a new report from Cisco.

Google announced this week that it will provide certain website administrators with samples of malicious code found on their sites to help them clear the infection.

Always quick to capitalise on major headlines, spammers have begun sending out messages related to the deaths of Michael Jackson and Farrah Fawcett, security researchers said.

Eighty per cent of CISOs believe their company's own employees and contractors are the greatest threat to company data, according to a new study conducted by security vendor NetWitness and audit-and-information-security training company MIS Training Institute.

A new threat dubbed "Nine-Ball" has compromised up to 40,000 legitimate websites, which are, in turn, infecting users with an information-stealing Trojan, according to security vendor Websense.

Political unrest resulting from the presidential election in Iran has escalated to a cyberwar between the Iranian government and activists, according to security experts monitoring the situation.