On November 18, 2013, the USCIS announced an enhancement to the E-Verify program that will help combat identity fraud by identifying and deterring fraudulent use of Social Security numbers (SSNs) for employment eligibility verification. USCIS will use a combination of algorithms, detection reports and analysis to identify patterns of fraudulent SSN use. This new safeguard will enable USCIS to lock a SSN that appears to have been misused, protecting it from further potential misuse in E-Verify. If an employee attempts to use a locked SSN, E-Verify will generate a “Tentative Non-confirmation” (TNC). The employee receiving the TNC will have the opportunity to contest the finding at a local Social Security Administration field office.