Department of Homeland Security officials allowed 825,000 people to enter the United States fraudulently, according to an inspector general report on a DHS immigration security program.

The inspector general warned that US-Visit, a DHS program that tracks who is entering the country through fingerprinting and other personal data, has major problems.

“Our analysis of Automated Biometric Identification System (IDENT) data found 825,000 instances where the same fingerprints were associated with different biographic data,” the report says. “In some cases,we found that individuals used different biographic identities at a port of entry after they had applied for a visa under a different name or been identified as a recidivist alien.”

In many of those cases, the inspector general expects, the data problems arise from mistakes made by DHS when initially collecting the information.

The agency is working to correct those errors, but the “current identity resolution effort is not designed to specifically
target individuals who are using multiple identities to enter the United States.”