Yet the fraud protections for debit cards tend not to be as robust as those for credit cards. Downstairs Market Status: just now was: Online. Savage Exxon — Laurel, MD — yelp. But there were enormous unintended consequences. However revolutionary it may be, blockchain is not unhackable. Did you know that, except in Massachusetts and a couple of other states , when you use your credit card to tip your server at a restaurant, the server can end up seeing that tip reduced by 3 or 4 percent to cover the credit card fees? Sometimes, only cash will do