Lithuania’s State Security Department has confirmed that intelligence officers are among those affected by a large-scale data breach at the Centre of Registers, which was first uncovered after a citizen raised concerns over potential irregularities.

The head of Lithuania's State Security Department, Remigijus Bridikis, said intelligence personnel were affected “just like any other citizens”.

He declined to say whether the stolen data had been specifically targeted or to outline what countermeasures the agency would take, citing security concerns.

“The law mandates that we take measures ourselves to protect our information and activities. If we talk about it now, the adversary will know our weak spots,” he said. “We all have weak spots, there is nothing surprising about that.”

Bridikis said there was no reason for public alarm regarding the exposure of intelligence officers’ personal data. He also said it was not yet confirmed whether a hostile state was behind the attack, adding that responsibility should be determined by prosecutors.