Yes. Been in one when it was hit. Responsible for its computing systems.
Sounds like a shoddy build quality then doesn't it? Concrete in a finished building should not be damp internally. The surface may be wet.
Seems quite likely. UK buildings have dampcourses to avoid wet walls and most large industrial buildings have lightning conductors on them.
The building that I worked in took a direct hit once. The lightning didn't go down the official lightning conductor as some scrote had nicked it for the copper. So it found the next nearest thing which was the telephone wire cluster trunking and vapourised most of that down to the ground. The secretary in reception was very upset afterwards and the wiremen took a few days to fix it but damage was very localised and largely superficial. The strangest thing was that we were not the tallest thing around - a super grid pylon was no more than 200m away. I expect the large area shallow angle metal roof made us a target.
The computers expensive terminal drivers died saved the cheap surge arresters and the part of the computer that is nominally most sensitive to electrical interference kept on running. Only the terminals on cables that ran underground from the building were a problem.
Regards, Martin Brown