"You look no different than somebody with a big fat balance, " says John Ulzheimer, president of consumer education at SmartCredit.com, which sells credit-score monitoring services based on its own scoring formulas.

WSJ: Getting Going: Why the Latest Credit-Score Fixes Fall Short

If you trust Visa or MasterCard with plastic payments, this will be no different, according to Mung-Ki Woo, the head of mobile for MasterCard Worldwide.

CNN: Mark Milian

"With any major event you would expect us to do some scenario planning and this is no different, " she said.

BBC: 3,400 set for World Police and Fire Games in Belfast