The test requires security products to detect 100 per cent of the threats in a sample, which uses a collection of all known malware samples currently in use by attackers.
After passing in June 2006, OneCare failed the test in February when it caught 99.91 per cent of the threats.
"These accolades are a strong endorsement of OneCare's powerful anti-malware tools and mean that OneCare protects customers from known threats on the market today," OneCare lead product manager Gina Narkunas wrote on the Windows Live Spaces blog.
Much of today's AI is narrowly focused on specific tasks - a far cry from the general AI envisioned by the early pioneers
US space agency believes the crater could have preserved ancient organic molecules from the water that flowed there billions of years ago
Valve quietly closes down hardware initiatives launched following Windows 8
Scientists create a virtual reality simulation of a black hole sitting at the centre of the Milky Way
Simulations like this can help people understand complicated systems in the universe in a better way