The mobile application of the Russian Ministry of Emergency Situations suffered a massive cyber attack. The department confirmed the fact of the hack: the attackers used the application's infrastructure to send mass fake messages. Experts are already eliminating the vulnerability and restoring the normal operation of the service. The Russian Ministry of Emergency Situations urges citizens not to click on links from suspicious messages, to temporarily disable push notifications from the application and to check any worrisome information only on the department's official website. Users are advised to update the app to the latest version immediately after restoring it. An internal investigation is underway to find out the source of the attack.