I don't know for sure, but certainly we have grade 6 students already, so it's been at least six years. Of course, Finland and countries neighbouring Russia are very much aware of disinformation. They share a border with Russia. They're going to build a wall between Finland and Russia. These countries have very much been the victims or the targets of attempts to sow disinformation.
On October 1st, 2024. See this statement in context.