Synthetic identity fraud
Also known as: Synthetic identity · Synthetic ID fraud · SIF
Fraud committed with an identity fabricated from a combination of real and invented personal information, built to pass verification without corresponding to a person who exists.
At Zarv
Detected before onboarding, by cross-checking more than 200 independent sources.
The Federal Reserve's industry-agreed definition is precise: synthetic identity fraud is the use of a combination of personally identifiable information to fabricate a person or entity in order to commit a dishonest act for personal or financial gain. Classic identity theft impersonates someone real; a synthetic identity assembles someone new out of true fragments — often a valid Social Security number that belongs to someone else — each of which passes an individual check.
The fraud is patient. The fabricated person applies, is declined, becomes a thin file, gets a small card, pays on time, piggybacks as an authorized user — and after months of building a score, borrows as much as possible and disappears. There is no victim to complain, so the loss is often booked as a credit loss rather than fraud.
Field-by-field verification does not solve it; the SSA's eCBSV service can confirm that a name, date of birth and SSN match, but not that the person behind them lives a life. The signal is incoherence across independent sources: an identity that has never moved, never held a tie, never appeared anywhere else. Catching it means cross-checking sources the fabrication cannot cover all at once — before onboarding, not in the next audit.
Frequently asked questions
What is synthetic identity fraud?
It is fraud committed with an identity built from a mix of real and fake information, such as a real Social Security number combined with an invented name and date of birth. The fabricated identity builds a credit history over time and is then used to borrow and default.
How is synthetic identity fraud different from identity theft?
Identity theft uses a real person's identity, and that person usually notices and complains. A synthetic identity belongs to nobody, so there is often no victim to report it, which is why it can go undetected for months and is frequently misclassified as a credit loss.