

Kaspersky also filed antitrust complaints with the European Commission and the German Federal Cartel Office. Microsoft was warned in June by the Russian Federal Antimonopoly Service (FAS) that such practices were illegal after Kaspersky had filed a complaint. Microsoft had been criticized because Windows antivirus policy had been to automatically disable third-party antivirus software in favor of Windows Defender if the antivirus software was not compatible with a Windows update.


