MASSIVE DATA TRANCHE — Roughly 25 million of the passwords have never been seen before by widely used service. Getty Images Nearly 71 million unique credentials stolen for logging into websites such as Facebook, Roblox, eBay, and Yahoo have been circulating on the Internet for at least four months, a researcher said Wednesday. Troy Hunt, operator of the Have I Been Pwned? breach notification service, said the massive amount of data was posted to a well-known underground market that brokers sa...