Honor among thieves is a phrase used to describe the idea that there might be a set of rules or behaviours to which thieves or other criminals will adhere. This concept may come from the belief that thieves share a common identity, or that the behavior is normalized within the group of criminals.

In the case of credit card thieves, there is a complex social hierarchy. Typically, the higher rank thieves will make higher profits or will be less involved in direct thievery. It has also been suggested that criminals may develop an anti-social culture with its own norms, values, and expectations, which may promote the idea of honor.

However, it is worth noting that the phrase "honor among thieves" is often used ironically or figuratively, and does not necessarily reflect the actual behavior or values of all criminals.