Equifax is getting crushed — and traders are betting it's going to get so much worse

Equifax has already plunged 18% since it announced last week that hackers may have the personal details of nearly half the US population.Options traders are betting that this is only the start. As of Monday, the options contracts with the largest outstanding bets on the stock profit from a decline of 15% to 19% over the next five weeks, according to data compiled by Bloomberg.
To get more specific, the two contracts represent wagers that Equifax's stock price &mdash