We had numerous posts on OpSec a few weeks ago regarding careless Russian mobiles bringing disaster upon themselves. The current Ukrainian offensive has been quite a surprise to many in the West as well as the Russians, one reason for this being the restrictions on journalists and warnings to the populace of the dangers to liberation posed by loose talk -- or these days social media and similar speculation.
It's all too easy to spout about free speech and the public's need to know when other people's lives are at risk. Just as the card indexes with every scrap of trivial German information were built in Bletchley Park, the Ukrainians put together every item of info to smite the enemy -- and take steps to ensure the Russians can't do the same. One can only repeat: Slava Ukraine!