EXPLORINEER
en

DE — heise online

Official emergency warning apps hacked in Ukraine and Russia

Security2 min read

Official emergency warning apps in Ukraine and Russia were hacked. In Ukraine, the app wrongly warned of radiation in Kyiv, and in Russia, false messages were sent to people.

Two emergency apps hacked

Emergency apps send urgent alerts to people's phones, for example when enemy air attacks are coming. Officials said the official apps in Ukraine and Russia were hacked. On Sunday night, Ukraine's app "Air Alert" wrongly warned of radiation in the capital, Kyiv, among other things. The Ukrainian air force said the app may have been taken over by the enemy. It said there was no radiation danger. By Monday morning, the app was working normally again. Later that night, Russia reported a large cyberattack on its own warning app. Russian state news agency Tass said false messages had been sent to people.

Key facts

  • Ukraine's app wrongly warned of radiation in Kyiv on Sunday night.
  • Some reports say the Ukrainian app also wrongly warned of chemical weapons attacks.
  • Russia's warning website was briefly offline during the night.
  • Russia says its national warning system still works normally.
  • Russia has been attacking Ukraine for almost five years.

Who might be behind it?

Russia did not say who it thinks was behind its attack. The timing led some to think Ukraine may have struck back after the attack on its own system. This is only a guess. Russia has been attacking Ukraine by air, on land, and at sea for almost five years. Cyberattacks are part of this war, but they make fewer headlines.

Why it matters

Warning apps help people reach safety fast. If they are hacked, people may panic or not trust real warnings. Officials told people in Ukraine not to click on links in the warning app. Ukraine also keeps attacking Russian oil refineries. Ukraine's president, Volodymyr Zelensky, says this is a response to Russian attacks on Ukraine's energy system. The US government asked Ukraine to stop these attacks because diesel prices were high. Zelensky asked for more Patriot missiles to defend against Russian attacks, but these are now in short supply.

What to watch

  • Whether Ukraine and Russia confirm who was behind the hacks.
  • Whether the warning apps are fully safe and working again.
  • Whether Ukraine gets more Patriot air defense missiles from its partners.
  • Whether Ukraine keeps attacking Russian oil refineries.

Glossary

Air Alert
The official Ukrainian app that sends air raid warnings to phones.
Tass
A Russian state news agency.
Patriot
A US-made air defense missile system that shoots down incoming missiles and aircraft.

Ad

Add 150 words. Learn 10 a day.

Dicter word books send only the words you learn to your review notes.

Security전자신문

KISIA Promotes Cybersecurity Tech Exchange with Indonesia to Support Korean Firms' Market Entry

The Korea Information Security Industry Association (KISIA) said it is expanding local cybersecurity exchanges and cooperation to help Korean security firms enter the Indonesian market. KISIA took part in the SuSEC 2026 conference in Jakarta from the 13th to the 15th of last month, co-hosted by LS Ware and state-owned SUCOFINDO, with more than 200 attendees including government, military, and public sector officials. A consortium including LS Ware is jointly developing an intelligent zero-trust-based integrated threat detection and response platform tailored to Indonesia's security environment.

SecurityITmedia

Rakuten Securities may have leaked data on 362 customer records; unauthorized access hit NTT Data subcontractor

Rakuten Securities announced on October 31 that information on a total of 362 records of some customers who bought "digital benefit bonds" may have leaked. The leak was tied to unauthorized access by a third party to a system provided by an NTT Data subcontractor, which NTT Data says has since been suspended. The affected customers will be contacted individually, and the investigation into the intrusion route is ongoing.

SecurityITmedia

Nico Nico Rent-a-Car Ends Advance Registration of Driver's License Images and Deletes All Stored Images Amid Rising Cyberattacks

Rental car chain Nico Nico Rent-a-Car, operated by Rentas, announced on October 27 that it is discontinuing the advance registration of driver's license images in its official app "Nico Pass." Customers booking through the app must now show their license at the store counter on the day of rental for staff verification. Rentas said the change is meant to strengthen personal information protection amid increasing cyberattacks, that it has deleted all previously stored license image data, and that it has not confirmed any leaks as of October 27.

SecurityITmedia

Club Tourism Hit by Unauthorized Access; Up to 4.32 Million Personal Records Possibly Leaked, Website Suspended

Club Tourism announced on October 31 that unauthorized external access may have leaked about 4.32 million personal records of online members, including names, nationality, and emergency contacts. The company says customers who never registered as online members are not affected, and that passwords, passport information, credit card data, and bank account numbers were not included. The website remains suspended while the company investigates, and it plans to resume once safety is confirmed.