On February 26, 2014, Carolyn W. Colvin, Acting Commissioner of the Social Security Administration, testified before the House Ways and Means Subcommittee on Social Security. Her testimony was about SSA anti-fraud efforts and you can read it here.
The Social Security website, www.socialsecurity.gov, contains a “Report Fraud, Waste or Abuse” link to the SSA Office of the Inspector General (OIG). There you can learn more about investigations and read about recent cases. You can also submit a report if you suspect someone of committing fraud, waste, or abuse against Social Security.