Ukraine and Russia Report Hacks of Air-Raid Alert Apps, Sending False Radiation Warnings

Ukraine's Air Force said late on Sunday that the country's public air-raid alert app had been hacked after it sent false warnings of a radiation hazard and a chemical attack in Kyiv. The app's map also showed Kyiv and other areas under nuclear alert, and users were warned of street fighting and of Russia's hypersonic Oreshnik missile. The Air Force said on Telegram that there was no radiation threat and urged people to stay calm. Ukraine's Center for Strategic Communications blamed Russia, though no group had publicly claimed the hack. Hours later, Russian authorities said their own warning app had been hacked and taken offline, and a Ukrainian hacker group claimed to have sent fake nuclear warhead alerts to users in Russia. The false alerts began the day a six-day local ceasefire in Russian-occupied Kherson region ended. The United States said Melania Trump brokered that truce, which allowed aid and evacuations in Olekshy. Both sides also struck energy sites overnight, with strikes reported in Zaporizhzhia and Odesa.

Fox News opens with an exclusive interview in which Estonian Foreign Minister Margus Tsahkna says Moscow is using hybrid tactics such as cyberattacks and GPS interference rather than preparing to invade NATO. It then focuses on Kyiv, quoting the alert texts, describing street loudspeakers and noting that no group had claimed responsibility. The Guardian's live blog instead presents corresponding hacks in both countries. It calls this the first breach of its scale in the war and reports the Ukrainian hacker group's claim and the overnight strikes. Both sides report the same fake alerts and the same Air Force statement. They differ on whom they put at the center: Fox stresses Russia as the suspected source, while the Guardian stresses reciprocal attacks. Al Jazeera adds the Kherson ceasefire context and mutual accusations, while Reuters is brief.