The IRS Hack Was Twice as Bad as We Thought

On Friday, for the second time in six months, the Internal Revenue Service revised its estimate of the scale of a cyberattack on its systems, announcing that a total of about 724,000 individuals may have had their personal information stolen by hackers last year. That’s more than twice as many as the agency said were affected after an investigation that concluded this August—and a whopping six times larger than the original estimate of the damage.