Use Cash to Pay for Cabs in Chicago. OK but what about everywhere else?

I get that after the data breach in Chicago we need to possibly use cash to pay for Cabs when in town. But the breach it's self didn't give me much comfort for the rest of the Cab industry, should I be using cash every time I get in a cab?
Does this also mean any town car or limo services?

http://www.tweaktown.com/news/36046/visiting-chicago-use-cash-instead-of-credit-or-debit-to-pay-for-cabs/index.html