“GECRB ONDC” refers to an Old Navy Discover Card (“ONDC”) issued by General Electric Capital Retail Bank (“GECRB”). GE Capital turned into Synchrony Bank in 2015, which is why the code for newer versions of the card is “GECRB SYNCB.”
If you don’t have an Old Navy Credit Card and have one of the above notations on your credit report, you should definitely look into this further. It could be a simple mistake that you can dispute. Or it might be a sign of fraud that requires suppression/blocking.
You can learn more from WalletHub’s guides on unauthorized credit inquiries and unknown accounts.