USB flash drives worm is the biggest security threat

McAfee announces USB flash drives worm to be the biggest security threat to PC users.

Thus, according McAfee ‘s Threats Report: First Quarter 2010, an AutoRun-related infection was also the world's third biggest PC threat during the first three months of the year, while the rest of top five biggest PC threats were made up of password-stealing Trojans.

The report revealed that spam rates have remained steady.

However, there has been an increase in diploma spam, or spam that offers forged qualifications, in China, South Korea and Vietnam. The security vendor also said malware and spam in Thailand, Romania, the Philippines, India, Indonesia, Colombia, Chile and Brazil had surged.

McAfee said this was down to the significant growth of web use in these countries coupled with a lack of security awareness.

The security vendor said attackers continue to use major news stories to ensure web users are directed to malicious web links, while the US continues to host 98% of these poisoned links.