The New Year’s Eve firefight that destroyed a Pentagon computer system was a bad decision, a Pentagon official says

The Pentagon said on Thursday that a computer system that was destroyed during the December 10 attack on a Pentagon building in Virginia had been fixed and the Pentagon had not been breached in nearly three years.

The firefight, which left a Pentagon network of computers vulnerable to attack, was the worst firefight for a Defense Department computer system since the 2011 attacks on the Pentagon in Benghazi, Libya, that killed Ambassador J. Christopher Stevens and three other Americans.

The Pentagon said in a statement that a team of more than a dozen contractors had been working to fix the damage to the computer system at the Pentagon’s Joint Base Andrews in Maryland.

The Pentagon was not able to provide details about the nature of the damage, but the statement said that “significant damage to our network” was not possible.

The department was also unable to provide an estimate of the cost of repairs, but it said it was “considerable.”

“As we have said repeatedly, the damage inflicted by the Dec. 10, 2016, terrorist attack on the U.S. Capitol in Washington, D.C., was catastrophic,” the statement added.

“We are grateful to all who helped secure and maintain our network and continue to work to restore it to its former glory.”

The Pentagon has been struggling with cybersecurity problems since the cyberattack on the network in 2011.