Corporate PCs 'riddled with spyware': "Five per cent of the PCs scanned had system monitors and 5.5 per cent had Trojan horse programs, the two most nefarious and potentially malicious forms of spyware. The audit - based on scans of more than 10,000 systems, used by more than 4,100 companies - is touted by Webroot as the first comprehensive analysis of the presence of spyware within corporate networks."—The Register