The Internal Revenue Service warned of a huge data breach of its online Get Transcript application that allowed the tax returns of approximately 104,000 taxpayers to be accessed by identity thieves.

The Internal Revenue Service failed to identify and assist all taxpayers who may have been affected by the data breach in its online “Get Transcript” application, according to a new government report.

Quick Take: What Is a Tax Transcript and Why Do You Need One? In short, a tax transcript shows basic data and line items such as adjusted gross income, AGI, or other taxable income, as well as FICA ...