IRS anti-fraud system uses data lost in previous data breach
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Mar 3, 2016 12:50 GMT · By Catalin Cimpanu The US Internal Revenue Service (IRS) has been using a conceptually flawed system to protect the victims of its May 2015 data breach from abuse, and it's not working, as independent reporter Brian Krebs has discovered.
Last week, we reported that the IRS had amended the final tally of its May 2015 data breach, bringing it to a number seven times what it originally announced.
The breach happened through the IRS Get Transcript application, and the attackers managed to acquire the personal details of some US citizens.
The IRS said initially that only 100,000 US citizens were affected, then modified the number to 225,000, then to 390,000 in August, and then to 685,000 last week.
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