The war in Ukraine has proved to be unlike any other armed conflict the world has seen before. In addition to the actual invasion and the bomb attacks, we have seen a real attack of false information, what we can call hybrid warfare. Like classic combat in theatres of operations, information warfare aims to destabilize society by bringing information with a strong emotional impact to the fore. And in the current media environment, social media has been the main vehicle for spreading false information, rumors, and deep fakes. This study analyses the main false information that has appeared in the public space about the war in Ukraine and how it has been taken up by media outlets.