Feb 14, 2011 15:30 GMT  ·  By

Intego has announced that the company’s free antivirus, VirusBarrier Express, has been downloaded more than 500,000 times in its first 30 days of existence as an exclusive title on Apple’s Mac App Store.

VirusBarrier Express is a free antivirus and anti-malware tool based on Intego’s VirusBarrier X6, a paid solution from the Austin, Texas-based security software vendor.

VirusBarrier Express not only protects Mac users from viruses, Trojan horses and other types of malware, but also detects Windows malware, Intego claims.

Mac users, therefore, won’t be able to pass on infected files to their Windows-using friends and colleagues, should they employ VirusBarrier Express - a free download from the Mac App Store.

“Present at launch, on January 6, 2011, and still the only antivirus available from the Mac App Store, VirusBarrier Express is in the Top Free Apps lists in most major countries, and is at the top of the Utilities category around the world,” Intego notes in a press release issued today.

“Initially available only in two languages, the latest update to VirusBarrier Express, early February, added 8 languages, and we hope that downloads in countries with these languages will increase substantially in the coming months,” the company adds.

“We’re delighted to have such resounding success in the Mac App Store,” said Laurent Marteau, CEO Intego. “The Mac App Store is a revolutionary new way to distribute software, and it is providing new avenues for users to discover useful programs.”

Specifically, VirusBarrier Express 1.0.2 is available in English, Chinese, Dutch, French, German, Italian, Japanese, Portuguese, Russian and Spanish. The software requires Mac OS X 10.6 Snow Leopard.

Download VirusBarrier Express (Free)

Intego has also announced that About.com’s Antivirus Software Blog is running a Readers’ Choice award competition with detailed coverage on Mac antivirus software, as well as Windows software.

Intego VirusBarrier X6 has been nominated in the best Mac antivirus category. The company hopes that users go and vote for their program.