Intego today updated its free VirusBarrier Express anti-malware program to version 1.1, improving and simplifying the program's malware definition update system. The company will now update malware definitions at least once a month, and without charge (a change from the previous system) and will now limit itself to Mac malware definitions (another change). The company also introduced a new product, VirusBarrier Plus, also sold exclusively through the Mac App Store, that guards against both Mac and Windows malware so that Mac users don't pass on Windows viruses or malw
