Yahoo! (YHOO) should have come clean earlier on its hacking problem, but it likely won't derail the Verizon deal because it was not a ransom hack, says TheStreet's Jim Cramer. Yahoo! confirmed claims that a massive data breach had occurred at the Sunnyvale, Calif.-based Web giant, in which at least 500 million accounts were hacked in 2014. The cyber theft appears to be the world's largest Internet security breach to date, in which personal data including passwords, names, telephone numbers and other details were stolen from Yahoo!'s platform. Yahoo! struck a $4.8 billion deal in July to sell its core Web assets to Verizon (VZ - Get Report) .