Emergency Alert Apps Hacked in Ukraine and Russia with False Nuclear Warnings

Civilian emergency alert mobile applications in both Ukraine and Russia were targeted by cyberattacks late Sunday night, pushing false, panic-inducing notifications regarding nuclear strikes, radiation hazards, and chemical threats.

The digital intrusions coincided with the expiration of a localized, six-day humanitarian ceasefire in the southern Kherson region, which is the longest temporary pause in fighting between the two nations since the full-scale conflict began nearly five years ago.

In Ukraine, the national "Air Alert" app began sending unauthorized notifications around 10:45 p.m. Kyiv time. The alerts, sent to users across multiple regions including the capital city of Kyiv, falsely warned of severe chemical threats, dangerously high radiation levels, and active street fighting. One fake message, written in Russian, claimed that Russia had launched a nuclear-capable Oreshnik hypersonic missile and declared a nationwide nuclear emergency.

In response, Ukrainian air defense officials and the Ministry for Digital Transformation temporarily suspended the application to mitigate the intrusion:

"The air alert app appears to have been subjected to enemy influence. There is no radiation threat! Stay calm and follow our updates on our channel!"

Yurii Ihnat, spokesman for Ukraine’s air force command, clarified on television that the breach did not compromise military defense operations, as public notification software functions independently from military command networks. Officials noted that primary warning channels, including physical sirens and broadcast systems, remained fully operational.

Hours after the Ukrainian app was compromised, Russian emergency authorities reported that the official mobile app for the Ministry of Emergency Situations had also been breached. Fake alerts sent to Russian users warned that nuclear warheads had been launched toward Russian regions, advising residents to seek shelter in cellars and secure three weeks of supplies. The pro-Ukrainian cyber group Atesh shared screenshots of the altered alerts on social media, declaring the system compromised.

Russian officials characterized the mobile software as a secondary communication tool and stated that primary alert infrastructure remained unaffected:

"We ask the public to remain calm and to trust only official sources of information — the Russian Ministry of Emergency Situations’ website and the department’s official social media accounts."

Kremlin spokesperson Dmitry Peskov addressed the incident, noting that government digital infrastructure faces ongoing cyber threats:

“All government bodies must take steps to improve the cybersecurity of our digital resources.”

Despite the severity of the fake warnings, residents in Kyiv generally dismissed the notifications after noticing unusual phrasing, spelling errors, and the use of the Russian language, which is not used for official Ukrainian government alerts.

The cyber incidents occurred precisely as a localized truce in the Kherson region expired at midnight on Monday. The limited pause in fighting, which began on October 27, was arranged to facilitate a humanitarian evacuation from the Russian-occupied frontline town of Oleshky, where roughly 2,000 civilians had been trapped by heavy mining and supply shortages.

U.S. First Lady Melania Trump, alongside civilian negotiators and religious leaders including Pope Leo XIV, helped broker the agreement. In a public statement addressing the operation, Melania Trump said:

“On behalf of America, I commend Russia and Ukraine for their leadership and cooperation surrounding the Oleshky ceasefire. I hope Oleshky serves as a foundation for lasting peace between both nations.”

Roughly 800 civilians were safely evacuated during the six-day window, while remaining residents received fresh medical and food shipments. Following the midnight expiration of the truce, active military operations resumed. Ukrainian officials reported drone strikes across the Kharkiv, Odesa, and Kherson regions, while Russian authorities reported intercepting over 200 Ukrainian drones overnight.