Enterprise investment in information technology security in the United States is likely to hit 12% of total IT budgets over the next couple of years. The average security investment will peak at 8% to 12% by 2006 in the United States and reach the same level in Europe and Asia by 2007. These budgets will stabilize between 5% and 8% by 2008 in the United States and in Europe and the Asia-Pacific region by 2009, the Meta Group said in a new study released on Monday.