There have been break-ins at Finnish water reservoirs / pumping stations, as well as unauthorized people at some other facilities. I wouldn't consider it at all implausible that the similar but seemingly disconnected incidents are also product of online recruitment, not unlike these cases of arson.
RT [@ChrisO_wiki](https://mastodon.social/@ChrisO_wiki )
https://mastodon.social/@ChrisO_wiki/112792015639982698