Veterans Affairs Secretary David Shulkin claimed Thursday that a top aide who allegedly altered an email to improperly justify spending taxpayers’ cash on his wife’s airfare had been hacked.

“We’ve seen that somebody is impersonating her, and we have to fully investigate that to make sure that we follow the processes,” he said about Vivieca Wright Simpson, the agency’s No. 3 official, according to The Hill.

“We have found that there are people sending emails from her account that aren’t her. That’s concerning to us.”

Simpson was accused by the agency’s top watchdog of doctoring emails to help get the free trip for Shulkin’s wife — though she will apparently escape punishment.

And Shulkin — a favorite of President Trump, who vowed to focus on veterans’ care while campaigning — said he’d reimburse the agency for $4,000 in taxpayers’ cash that paid for his wife’s airfare on an 11-day trip to Europe.

Testifying at a House hearing, Shulkin said he accepted responsibility for making mistakes after a government investigation found “serious derelictions” in the handling of the trip, including improperly accepting Wimbledon tennis tickets.

The report Wednesday by the Department of Veterans Affairs’ internal watchdog concluded that Shulkin’s staff had lied that he was getting an award to justify his wife accompanying him at taxpayer expense on the July trip to England and Denmark.

“I do recognize the optics of this are not good,” Shulkin told the House Veterans’ Affairs Committee, stressing that he wants to “make things right.”

Shulkin said he would pay back the airfare, and heed the inspector general’s recommendation that he cover the cost of the Wimbledon tickets.

His comments came as several lawmakers slammed him for apparent misuse of taxpayer money and called on him to better explain his actions in the coming weeks.

One lawmaker, Rep. Mike Coffman (R-Colorado), has demanded that Shulkin resign.

“It’s not the optics that are not good. It’s the facts that are not good,” Coffman said.