If you told me I use OSS on a daily basis that has some sort of malicious code that slipped though the cracks, I'd believe it just due to the shear amount of code running on any machine.
That sounds very possible, but not very advisable.
On the other hand, if you completely ignore tensions and keep up the supply in the case of war, interdependence ceases to be a deterrent at all. The real problem here is that somebody started a war; the isolationism is just one of the many bad consequences.
We will always have global trade.
Or maybe it's showing that it indeed is quite optimal to rely on other countries for your crucial infrastructure - it's just not advisable to anger those countries by breaking international treaties and committing war crimes?
Having to resign from this optimal strategy and isolating yourself is exactly the war deterrent that sanctions are supposed to achieve.
To the comment below :
>everyone becomes poorer it will slow as people simply won't be able to afford to leave
the things have worked in opposite way - the brain drain of 199x slowed by ~2003/5 as economic situation improved until 2014/5 when it started to pickup again. Of course visa issues and potential "iron curtain", etc. will affect it.
Or are they even able to - are there increased visa restrictions yet?