The automated attack attempted to obtain E-file PINS for over 460,000 people using previously stolen personal data.
By Lucian Constantin
The Internal Revenue Service was the target of an attack that used stolen Social Security numbers and other taxpayer data to obtain PINs that can be used to file tax returns electronically.
The attack occurred in January and targeted an IRS Web application that taxpayers use to obtain their so-called Electronic Filing (E-file) PINs. The app requires taxpayer information such as name, Social Security number, date of birth and full address.
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Source: http://www.csoonline.com/
