Americans are embracing using cellphones to conduct financial business, says a March 2012 report from the Federal Reserve, "Consumers and Mobile Finance Services." One in five cellphone users accessed a financial account in 2011, and that could rise to one in three by 2013, the report says. The biggest drag on

Americans are embracing using cellphones to conduct financial business, says a March 2012 report from the Federal Reserve, "Consumers and Mobile Finance Services." One in five cellphone users accessed a financial account in 2011, and that could rise to one in three by 2013, the report says. The biggest drag on faster adoption: concerns about security. More than 40 percent of the 1,780 people the Fed surveyed said they were concerned about mobile payments' security.