What does it mean customer is blacklisted?

Related questions

1. Do recruiters have a blacklist?
2. What is URL blacklist?
3. Can I get employment while blacklisted?
4. How long can you legally be chased for a debt?
5. Is blacklisting illegal?
6. Does debt go away after 7 years in Canada?
7. Why would a website block my IP address?
8. What if I decide I want to unblock someone?
9. What is the blacklist virus?
10. Does * 67 block your number?

Tags

1. #rejection
2. #subject
3. #prevent
4. #always
5. #system
6. #cards
7. #compiled
8. #fraud
9. #blacklisted
10. #suspect
11. #transactions
12. #having
13. #after
14. #database
15. #blacklisting
16. #purpose
17. #fraudulent