"We understand the role we play in this important industry issue and continuously monitor our systems in search of suspicious activity," Brad Smith, Intuit president and chief executive, said in the release.
"We've identified specific patterns of behavior where fraud is more likely to occur. We're working with the states to share that information and remedy the situation quickly. We will continue to engage them on an ongoing basis in an effort to stop fraud before it gets started," he added.
Minnesota said Thursday that it would no longer accept tax returns submitted through Intuit's TurboTax program because it had noticed potential fraud. The state's department of revenue said that some taxpayers filing through the platform had encountered a message that they had already submitted tax returns, despite having not yet done so.
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"Due to this potentially fraudulent activity, we have stopped accepting tax returns submitted using TurboTax," the department said in a release, adding its "priority is maintaining the security of private taxpayer data and preventing fraudulent activity within our system."
Tax returns from other Intuit products —including Lacerte, Intuit Tax Online, and ProSeries—will still be accepted, the department said.
The revenue department said its systems had not been breached.