I discovered a fraudulent account under my email address at Coinbase with many credit cards listed as well as other personal information. I was confused however as Coinbase requires a photo ID to create an account. I have a service that investigates ID theft, but Coinbase refused to cooperate and not only was very slow to respond when notified of this fraud but asked inane questions that made me realize that it was very likely a machine responding rather than an actual person. After several attempts to notify them of this fraudulent account, they finally shut down the account and refused on multiple occasions to provide me with the information I requested in order to understand and investigate this ID theft. They seem to have a lax approach to account security that they are further hiding by not providing the information requested that was needed to investigate this fraud. This is concerning given the financial nature of their business.
If you have had your email compromised, I would recommend that you try to open an account with Coinbase to see if your email and financial information were used to open a fraudulent Coinbase account and if so, change the password immediately. Then inquire as to how this account was created with your personal ID without your permission. I suspect that there are a great many accounts created this way on Coinbase, but it would seem that Coinbase is not interested in helping its customers investigate this crime.