The IT security firm ScanSafe said that 2006 marked the ascendance of web threats such as the Windows Meta File flaw, and that this trend is expected to continue in 2007 as more and more threats shift to the web. As more users go online to take advantage of Web 2.0 applications like social-networking sites, blogs, wikis and RSS feeds, malware authors are going to be right behind them, ScanSafe warned. According to a survey by the ePolicy Institute, 31 per cent of employees use IM at the office, and 78 per cent of those users are downloading free IM software from the internet.