Recently there has been many reports of unauthorized charges (1, 2, 3) on Bilt credit cards. The issue seems to only be affecting cards that are issued by Wells Fargo and not the cards issued by Evolve. A representative from Wells Fargo provided the following statement:
We recently discovered fraudulent activity that has impacted some of our Bilt Mastercard cardholders. We take these matters very seriously and are working closely with our partners at Bilt and Mastercard to resolve this issue.
A statement provided by Bilt on reddit states that this has been caused by a BIN attack:
Hey all – quick update from Bilt. We have been made aware of a global fraud ring that has been launching what are called BIN attacks. In short, they use compromised merchants to randomly test millions of potential card numbers to see which ones work, focusing in on one card range at a time. While many of these card attempts get blocked (often invisibly to the customer), occasionally charges make it through. This has been happening across banks and we are aware that a few of Wells Fargo Bilt cardholders have experienced fraudulent charges as part of that. Please note that you will never be liable for any fraud. Wells Fargo is reaching out to any impacted customers. And you can also contact Wells Fargo’s fraud team directly at 1-800-723-5533. They will remove any fraud charges and overnight you a new card. We put our customers’ security first and will make sure that this is resolved for you quickly. Thank you again for your patience!
Update: We have been informed that the better number to call is 1-833-404-2272.
If the above is accurate and the unauthorized charges are a result of a BIN attack then personal information such as SSN, address etc should still be secure.
Source: doctorofcredit.com