Security compromise in 2013 and 2014 that resulted in stolen login info including hashed passwords. Possibly the biggest data breach of all time. https://en.m.

Security compromise in 2013 and 2014 that resulted in stolen login info including hashed passwords. Possibly the biggest data breach of all time. https://en.m.wikipedia.org/wiki/Yahoo!_data_breaches https://en.m.wikipedia.org/wiki/Yahoo!_data_breaches