The US Internal Revenue Service (IRS) has conducted a major security overhaul and is in a better position to protect citizens and personal information, according to commissioner of internal revenue John Koskinen.
The IRS was compromised by hackers in April in an attack that exposed the details of over 100,000 taxpayer accounts.
The incident is under review by the Treasury inspector general for tax administration as well as the IRS Criminal Investigation Unit. The main IRS computer system was not affected, but the department admitted that it was a sophisticated assault.
Efforts to encourage better identity protection and more industry information sharing have come to fruition, according to the IRS.
The department said in a statement that it has made a "sweeping new collaborative effort" to combat ID theft and fraud with support from state tax administrators and the industry.
"Industry, states and the IRS all have a role to play in this effort. We share a common enemy in those stealing personal information and perpetrating refund fraud, and we share a common goal of protecting taxpayers. We want to build these changes into the DNA of the entire tax system to make it safer," said Koskinen.
"I applaud the industry and the states for stepping forward to take on this challenge and making the needed changes.
"This is good for taxpayers, good for tax administrators and good for the tax community. Working together we can achieve results that none of us, working alone, could accomplish."
Organisations involved included the Electronic Tax Administration Advisory Committee, the Federation of Tax Administrators, the Council for Electronic Revenue Communication Advancement and the American Coalition for Taxpayer Rights.
The plan, according to an IRS Security Summit document, is to get a number of systems and procedures in place before the 2016 tax filing season.
"To be effective [the system] cannot remain static because the criminals are constantly developing new schemes," the IRS said.
"As such, the partnerships will be engaged in a continuous dialogue around these elements, and adapting and strengthening existing defences while developing new strategies."
The move to shore up cyber defences at the IRS comes in the midst of another major hack attack on the US Office of Personnel Management (OPM), which may have affected as many as 14 million current and former US government employees.
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