Fake Nuclear Alerts Disrupt Ukraine and Russia Amid Cyberattack

Residents in Ukraine and Russia received false emergency warnings about nuclear threats after a cyber breach of government apps.

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Aapla Nagpur Desk
2 Nov 2026, 11:29 PM IST · 2 min read
Source: TOI
Fake Nuclear Alerts Disrupt Ukraine and Russia Amid Cyberattack
KEY TAKEAWAYS
1

Hacked mobile apps sent fake nuclear threat alerts in Ukraine and Russia.

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Ukrainian authorities temporarily suspended their alert app following the incident.

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The Russian Emergency Situations Ministry confirmed the breach affected 33 regions.

Residents of both Ukraine and Russia experienced a wave of false emergency alerts on Sunday and Monday, attributed to a cyberattack on government-operated mobile applications. In Ukraine, some notifications alarmingly warned of an impending nuclear threat, while others reported elevated radiation levels and public unrest in Kyiv.

The attacks occurred late on Sunday in Ukraine and early Monday in Russia, with no immediate evidence linking the two incidents. Following the alerts, Ukraine's emergency app, which is crucial for notifying citizens about missile and drone strikes, was temporarily taken offline but has since been restored. Meanwhile, Russia's Emergency Situations Ministry is working to rectify its app, which also faced disruptions.

The fraudulent messages were delivered in English, Russian, and Ukrainian, with notable spelling and grammatical mistakes in the English versions. One Russian-language alert ominously stated, "There will be a nuclear threat across Ukraine. Do not worry, the Oreshnik is incoming," referencing a type of Russian missile. A Telegram channel associated with Russian security services attributed the breach to the hacking group Hitcore, although this claim remains unverified.

Despite the alarming nature of the alerts, there was no significant public panic reported in Ukraine. Instead, social media users reacted with humor, sharing amusing pet images and AI-generated apocalyptic scenarios. Ukraine's air raid alert service indicated that unauthorized entities had tampered with the app and advised users to avoid clicking on suspicious links. The Center for Countering Disinformation in Ukraine recommended that citizens rely on alternative emergency communication channels while the situation was being resolved.

In Russia, the Emergency Situations Ministry confirmed that a false alert was disseminated around 2:45 AM Moscow time, impacting 33 of the country's 89 regions. The ministry has identified the vulnerabilities exploited by the hackers and is implementing measures to prevent future breaches. They assured that the broader public warning system remains functional through text messages and media broadcasts. Kremlin spokesperson Dmitry Peskov acknowledged the ongoing threat of cyberattacks against government agencies, emphasizing the need for enhanced cybersecurity measures across digital platforms. This cyber incident coincided with the expiration of a limited ceasefire in Ukraine's southern Kherson region, which had facilitated humanitarian efforts since October 27.

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