We noticed UBER charges on our credit card for rides we did not take. Found out that we could not call UBER to notify them, only email. After 5 days of back and forth emails with 10 different 'customer service' people, during which time fraud charges were continuing with UBER (and we had cancelled the AMEX, which is strange)... UBER finally told us that a MISS MOM was using our account, or created their own account with our card. The ONLY fraud charges with the card were with UBER. They gave us zero peace of mind with their security systems with credit card information, basically we got the sense that there is NO security and they have NO sense of urgency when it comes to fraudulent credit card use. Luckily we have fraud protection with AMEX even though UBER will still try to hold us liable... Obviously Going to Lyft now... UBER IS HORRIBLE