A person of unknow identity hacked my Groupon account, then Groupon sent me an email stating that my email has been changed and if it was not me please let support know. I also received an email from my bank stating about a purchase I did not make. I call my bank and stopped the purchase then I notified Groupon they gave me the run around and that I should contact my bank because someone has got my credit card information and hacked my groupon account. Which was not true. Groupon's investigation was not worth the time and they never admitted that their system was breach. Close your account because Groupon is not security, safe, or customer friendly.