“Few government agencies routinely collect more information on every law-abiding American than the Internal Revenue Service. And by targeting the IRS, a group of seemingly sophisticated hackers has now collected their own chunk of that detailed data. On Tuesday the IRS admitted that it had been the target of a breach that compromised 100,000 taxpayers’ files between February and the middle of this month. And though that may seem like a relatively small set of victims, the IRS says the attackers gained the full tax return transcript of the affected taxpayers, which could included a detailed dossier of their personal information including income and social security numbers.”
http://www.wired.com/2015/05/hackers-hit-irs-access-100000-taxpayers-files/