The simple explanation here is that Putin asked for the best-possible information about when a vaccine will be ready, and their intelligence agency decided that

The simple explanation here is that Putin asked for the best-possible information about when a vaccine will be ready, and their intelligence agency decided that to answer confidently, they needed to look at non-public documents. They would likely also be looking to manufacture their own supply, using intellectual property they can't otherwise access. This would be a straightforwardly good thing; vaccines made with stolen IP still save lives, and those lives matter a lot more than how money moves around. (Sabotage, on the other hand, would be unforgivable. But there is no evidence of that happening, so it's best not to speculate about baseless accusations.)