Marietta utility customer data found on dark web after third-party security breach. MARIETTA — About 8,800 Marietta utility customers may have had their credit card information compromised after a third-party software vendor reported a security breach. Javascript is required for you to be able to read premium content. Please enable it in your browser settings. Keep it Clean. Please avoid obscene, vulgar, lewd, racist or sexually-oriented language. PLEASE TURN OFF YOUR CAPS LOCK. Don’t Threaten. Threats of harming another person will not be tolerated. Be Truthful. Don’t knowingly lie about anyone or anything. Be Nice. No racism, sexism or any sort of -ism that is degrading to another person. Be Proactive. Use the ‘Report’ link on each comment to let us know of abusive posts. Share with Us. We’d love to hear eyewitness accounts, the history behind an article. Third-party company: Click2Gov.