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The Internal Revenue Service (IRS) has a demanding responsibility in collecting taxes, processing tax returns, and enforcing the nation's tax laws. It relies extensively on computerized systems to support its financial and mission-related operations.
As part of its annual audits of IRS's financial statements, GAO assessed the effectiveness of information security controls at certain IRS facilities and over certain specific applications--controls meant to protect IRS's information systems and taxpayer data.
Pursuant to a congressional request, GAO reviewed software change controls at the Department of the Treasury, focusing on: (1) whether key controls as described in agency policies and procedures regarding software change authorization, testing, and approval complied with federal guidance; and (2) the...