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SecurityFading · day 7

Ukraine and Russia hack each other's nuclear-alert apps in retaliatory cyberattacks

Fake nuclear, chemical and radiation warnings hit both countries' emergency apps overnight; Zelensky confirms Ukraine hacked back after Russia struck first.

newest coverage 5d agosummary written 5d ago304 pieces1.8k likes & upvotes53 comments XMastodonNewswiresRedditBlueskyGoogle NewsYouTubeHacker News

What to know

  • Ukraine's Air Alert app and Russia's Emergencies Ministry app were both hacked within hours of each other, sending false nuclear, chemical and radiation warnings.
  • Zelensky confirmed the Russian app hack was Ukrainian retaliation for an earlier Russian attack on Ukraine's warning system.
  • The incident occurred as a limited Kherson-region ceasefire collapsed, with both sides already trading blame over renewed fighting.
  • Attribution remains publicly unconfirmed on the Russian side beyond Kremlin statements, and experts say such attacks target public trust in institutions rather than physical harm.

The dispute Whether the two hacks were a clean tit-for-tat (Russia first, Ukraine retaliating) or whether attribution is still genuinely uncertain, as outlets note Russia has not confirmed who was behind the attack on its own app. · positions read across 63 posts and comments

many voices

Russia and Putin are responsible for starting the cyberattacks and deserve blame.

  • “Of course he did. This is what Putin the war criminal does. Down with Putin.🇺🇦🇺🇸”

    rieckhoff.bsky.social · Bluesky ↗
some voices

The fake Ukrainian-targeted alerts were poorly executed and easy to dismiss as fake.

  • “Russians hacked an air raid alert app and threatened a nuclear strike. Ukrainians are most annoyed it wasn't in Ukrainian.”

    kateinkharkiv.bsky.social · Bluesky ↗
some voices

The episode reignites broader anxiety about how fast a real nuclear exchange could unfold, drawing historical comparisons.

  • “The book Nuclear war by Annie Jacobsen puts into perspective how screwed we all are if something like that happens. It would take approx 2 hours from the first missile launch warning to world annihilation.”

    IceKingWizard · reddit comment ↗

“Currently, the situation in the oblast is calm. Reports indicate a cyberattack on the notification app”

Svitlana Onyshchuk, Ivano-Frankivsk Oblast Governor · Kyiv Independent ↗ · Oct 31

Volodymyr Zelensky President of UkraineDmitry PeskovDmitry Peskov Kremlin spokespersonMelanie Garson Associate Professor in International Security, UCLSvitlana Onyshchuk Governor of Ivano-Frankivsk Oblast, UkraineNatalia Zabolotna Governor of Vinnytsia Oblast, Ukraine

Ukraine and Russia hack each other's nuclear-alert apps in retaliatory cyberattacks
kyivindependent.com

How it unfolded 6 developments, newest first · click a bar or a number to jump articlesvideospostscomments

Peak 68 pieces in two hours at Nov 2, 3 AM; 304 pieces over 7 days (192 articles · 12 videos · 95 posts · 5 comments) Nov 1, 11 AM — 11 pieces · 11 articles — Newswires 11Nov 1, 1 PM — quietNov 1, 3 PM — 27 pieces · 20 articles · 7 posts — Google News 10, Newswires 9, Mastodon 5, +3 moreNov 1, 5 PM — 6 pieces · 3 articles · 2 posts · 1 comment — Google News 3, Mastodon 1, Reddit 1, +1 moreNov 1, 7 PM — 28 pieces · 20 articles · 8 posts — Newswires 10, Mastodon 9, Google News 8, +1 moreNov 1, 9 PM — 15 pieces · 10 articles · 5 posts — Google News 6, Mastodon 4, Newswires 4, +1 moreNov 1, 11 PM — 15 pieces · 7 articles · 1 video · 7 posts — Mastodon 8, Newswires 5, YouTube 1, +1 moreNov 2, 1 AM — 18 pieces · 11 articles · 7 posts — Google News 8, Mastodon 5, Newswires 3, +1 moreNov 2, 3 AM — 68 pieces · 47 articles · 20 posts · 1 comment — Newswires 40, Mastodon 12, Google News 6, +3 moreNov 2, 5 AM — 26 pieces · 13 articles · 1 video · 12 posts — Mastodon 8, Google News 8, Newswires 5, +3 moreNov 2, 7 AM — 15 pieces · 9 articles · 3 videos · 3 posts — Newswires 8, YouTube 3, Mastodon 2, +2 moreNov 2, 9 AM — 8 pieces · 5 articles · 3 posts — Mastodon 4, Newswires 3, Google News 1Nov 2, 11 AM — 29 pieces · 19 articles · 3 videos · 6 posts · 1 comment — Newswires 15, Mastodon 7, YouTube 3, +2 moreNov 2, 1 PM — 6 pieces · 4 videos · 2 posts — YouTube 4, Mastodon 2Nov 2, 3 PM — 6 pieces · 5 articles · 1 comment — Google News 3, Newswires 2, Reddit 1Nov 2, 5 PM — 8 pieces · 2 articles · 6 posts — Mastodon 6, Google News 1, Newswires 1Nov 2, 7 PM — 2 pieces · 2 posts — Bluesky 1, Mastodon 1Nov 2, 9 PM — 2 pieces · 1 article · 1 post — Mastodon 1, Newswires 1Nov 2, 11 PM — 1 piece · 1 post — Mastodon 1Nov 3, 1 AM — 1 piece · 1 article — Mastodon 1Nov 3, 3 AM — 1 piece · 1 article — Newswires 1Nov 3, 5 AM — quietNov 3, 7 AM — 2 pieces · 1 article · 1 post — Mastodon 1, Newswires 1Nov 3, 9 AM — 7 pieces · 6 articles · 1 post — Newswires 6, Mastodon 1Nov 3, 11 AM — quietNov 3, 1 PM — quietNov 3, 3 PM — quietNov 3, 5 PM — quietNov 3, 7 PM — quietNov 3, 9 PM — quietNov 3, 11 PM — quietNov 4, 1 AM — quietNov 4, 3 AM — quietNov 4, 5 AM — quietNov 4, 7 AM — quietNov 4, 9 AM — quietNov 4, 11 AM — quietNov 4, 1 PM — quietNov 4, 3 PM — quietNov 4, 5 PM — quietNov 4, 7 PM — quietNov 4, 9 PM — quietNov 4, 11 PM — quietNov 5, 1 AM — quietNov 5, 3 AM — quietNov 5, 5 AM — quietNov 5, 7 AM — 1 piece · 1 post — Mastodon 1Nov 5, 9 AM — quietNov 5, 11 AM — quietNov 5, 1 PM — quietNov 5, 3 PM — quietNov 5, 5 PM — quietNov 5, 7 PM — quietNov 5, 9 PM — quietNov 5, 11 PM — quietNov 6, 1 AM — quietNov 6, 3 AM — quietNov 6, 5 AM — quietNov 6, 7 AM — quietNov 6, 9 AM — quietNov 6, 11 AM — quietNov 6, 1 PM — quietNov 6, 3 PM — quietNov 6, 5 PM — quietNov 6, 7 PM — quietNov 6, 9 PM — quietNov 6, 11 PM — quietYesterday, 1 AM — quietYesterday, 3 AM — quietYesterday, 5 AM — quietYesterday, 7 AM — quietYesterday, 9 AM — quietYesterday, 11 AM — quietYesterday, 1 PM — quietYesterday, 3 PM — quietYesterday, 5 PM — quietYesterday, 7 PM — quietYesterday, 9 PM — quietYesterday, 11 PM — quietToday, 1 AM — quietToday, 3 AM — quietToday, 5 AM — quietToday, 7 AM — quietToday, 9 AM — 1 piece · 1 comment — Reddit 1Today, 11 AM — quiet 1–3456
Nov 2Nov 3Nov 4Nov 5Nov 6yesterdaynow · 12:58 PM ET
  1. 6

    Ukraine reiterates retaliation claim as both apps are restored

    Ukrainian officials, including Zelensky, further confirmed to domestic outlets that Kyiv's cyber response targeted Russia's air-raid alert system, as both countries' apps returned to normal operation and coverage recapped the overnight incident.

    1. 1 outlet Zelensky confirms Ukrainian hackers breached Russia’s emergency alert app in retaliation for earlier attack on Ukraine’s warning system

      first by Meduza EN, 5d ago

    • meduza_en@masto.ai

      Ukrainian President Volodymyr Zelensky confirmed that Ukrainian hackers carried out a cyberattack on a mobile app Russia’s Emergency Situations Ministry uses to send alerts about threats. https:// meduza.io/en/news/2026/11/03/z…

      meduza_en@masto.aiMastodon5d agoview on Mastodon ↗
    2 more of the top 3 · 4 posts in this stretch

    • Musk definitely is assisting the Russians directly now after the midterms. He wants revenge.

      AllAboutTheRegardsr/worldnews2h agoview on r/worldnews ↗
    • lsjmhar@mastodon.social

      RTÉ News Cyberattacks hit Russia, Ukraine emergency warning apps Read more here! https://www. rte.ie/news/ukraine/2026/1102/ 1597579-ukraine-russia/ Cyberattacks hit Russia, Ukraine emergency warning apps Russia and Ukraine have both said their emergency warning apps have been hit by apparent cyberattacks.

      lsjmhar@mastodon.socialMastodon5d agoview on Mastodon ↗
    all of them →
  2. 5

    Security expert says hacks aim to erode public trust

    UCL security scholar Melanie Garson told France 24 that this type of attack on emergency systems is designed to undermine public confidence in government institutions, with much still unclear about attribution.

    “are designed to undermine …”
    — Dr Melanie Garson
    1. 1 outlet Emergency alerts hacking 'designed to undermine trust in government', expert says

      first by France 24 EN, 5d ago

    • rieckhoff.bsky.social

      apnews.com/article/russ... Of course he did. This is what Putin the war criminal does. Down with Putin.🇺🇦🇺🇸

      rieckhoff.bsky.socialBluesky5d ago33▲view on Bluesky ↗
    2 more of the top 3 · 9 posts in this stretch
    • GeoWire@mastodon.social

      ⚡ NEWS Cyber Attacks on Emergency Alert Systems in Russia and Ukraine Emergency alert systems in Russia and Ukraine were compromised by cyber attacks resulting in fake nuclear strike warnings. The incidents, aimed at undermining government trust, have been contained but the perpetrators remain unidentified. 📰 https://www…

      GeoWire@mastodon.socialMastodon5d agoview on Mastodon ↗

    • The book Nuclear war by Annie Jacobsen puts into perspective how screwed we all are if something like that happens. It would take approx 2 hours from the first missile launch warning to world annihilation.

      IceKingWizardr/worldnews5d agoview on r/worldnews ↗
    all of them →
  3. 4

    Zelensky confirms Ukraine hacked Russia's alert system in retaliation

    In a PBS News interview, President Volodymyr Zelensky confirmed Ukraine struck Russia's emergency alert app after concluding Russia's earlier hack was a deliberate attack on Ukrainian civilians.

    “We only respond on their attacks…”
    — Volodymyr Zelensky
    1. 25 outlets Kyiv resident describes shock at false ‘radiation’ alerts as Ukraine and Russia say emergency apps hacked

      first by BBC, 6d ago · also Forbes, Agence France-Presse, Arab News, Free Press Journal, The Cyber Express, The Sun +18

      15 more headlines

    2. 4 outlets first by PBS, 5d ago · also Kyiv Independent, Yahoo, PBS NewsHour · read ↗

    • zackwhittaker@mastodon.social

      Zelenskyy confirms that Ukraine hacked-back after Russia's targeted its emergency alert system by targeting Russia's. In both hacks, each country's alerts warned of nuclear attacks. https://www. pbs.org/newshour/world/watch-z elenskyy-confirms-ukraine-hacked-back-after-russias-cyberattack-of-its-emergency-alert-system

      zackwhittaker@mastodon.socialMastodon5d ago19▲view on Mastodon ↗
    2 more of the top 3 · 22 posts in this stretch

    • 🚨 BREAKING: Hackers just sent fake NUCLEAR STRIKE warnings through emergency alert apps in Russia AND Ukraine, hours apart. This is what Covid looked like in week 1. A few alerts. A few headlines. Nobody called it a crisis. Why this is a big deal: the app people trust to tell them when to run to...

      @whalescanX6d agoview on X ↗

    • Next you'll tell me there are sanctuary cities amd some reasonable paralells to the bell riots

      armourkrisr/worldnews5d agoview on r/worldnews ↗
    all of them →
  4. 3

    Attacks coincide with collapse of Kherson truce

    The dueling hacks occurred as the war's longest limited ceasefire, covering Ukraine's eastern Kherson region, expired after Russia refused an extension; both governments traded public blame.

    1. 12 outlets Russia and Ukraine accuse each other of hacking emergency alert apps

      first by Mastodon, 6d ago · also The Canberra Times, Times of India, Deutsche Welle EN, Hindustan Times, Anadolu Agency, Bloomberg +5

      12 more headlines
    2. 6 outlets Cyber attacks hit Russia, Ukraine after truce ends

      first by Channel News Asia, 6d ago · also Guardian, Euronews, RTE News, Japan Times, The Hindu

      5 more headlines
    1 more claim →
    • newsguyusa@flipboard.social

      Ukraine's air raid alert system was hacked. https:// kyivindependent.com/ukraines-a ir-raid-alert-system-hacked-air-force-says-as-false-nuclear-chemical-warnings-sound/

      newsguyusa@flipboard.socialMastodon6d ago18▲view on Mastodon ↗
    2 more of the top 3 · 20 posts in this stretch

    • 🇺🇦🇷🇺 Ukraine and Russia were hit by fake nuclear threat alerts just hours apart. It started in Ukraine, where the country's air raid warning app suddenly told people in Kyiv that radiation had been detected. But that wasn't all. More alerts followed, warning of a chemical

      @MarioNawfalX6d ago8▲view on X ↗

    • But he who writes the history books, tells you about nukes in Cuba, but fails to mention nukes in Turkey came first. Russians really like to say "the nukes in Turkey came first" as if the nukes with which Russia threatened Bonn, Rome, Paris, London didn't come first, don't matter, and shouldn't have influenced the foreign policy of the allies at…

      nonviolent_blackbeltr/worldnews6d agoview on r/worldnews ↗
    all of them →
  5. 2

    Russia's emergency alert app also hacked, sends fake warnings

    The Russian Ministry of Civil Defense, Emergencies and Disaster Relief confirmed its mobile app suffered a 'massive cyberattack' leading to false notifications; Kremlin spokesperson Dmitry Peskov downplayed the breach as routine.

    “The website of the president of the Russian Federation is subjected to cyberattacks many times a day, every day. The same goes for other government agencies…”
    — Dmitry Peskov
    1. 5 outlets Hacked emergency alert apps spread fear in Ukraine and Russia

      first by Bangkok Post, 5d ago · also PennLive, MassLive, The Oregonian, Yahoo

      2 more headlines
    2. 1 outlet Global News Podcast | Ukraine and Russia hit by fake emergency alerts

      first by BBC, 5d ago

    2 more claims →
  6. 1

    Ukraine's air raid alert app hacked with fake nuclear warnings

    Ukraine's Air Force said the Air Alert app was compromised, triggering sirens nationwide and sending false alerts of nuclear, chemical and street-fighting threats; the app's developers disabled push notifications and suspended the service.

    “Hi! A nuclear alert is about to go off all across Ukraine! Don't worry, the Oreshnik is on its way…”
    — fake alert on Air Alert app

    1. 13 outlets first by Seoul Economic Daily, 6d ago · also Kyiv Independent, Reuters, Straits Times, Arab News, The Times of Israel, RedState +6 · read ↗

    2. 13 outlets first by CNN, 6d ago · also Yahoo News Canada, Business Insider, NY Post, New York Post, ZeroHedge, The Record +6 · read ↗

    7 more claims →

    • BREAKING: Ukraine's air raid alert app is reportedly hacked, sending false warnings of radiation, nuclear, & chemical attacks across the country.

      @PolymarketX6d ago1.0k▲view on X ↗
    2 more of the top 3 · 8 posts in this stretch
    • kateinkharkiv.bsky.social

      Russians hacked an air raid alert app and threatened a nuclear strike. Ukrainians are most annoyed it wasn’t in Ukrainian.

      kateinkharkiv.bsky.socialBluesky6d ago585▲view on Bluesky ↗
    • EugeneMcParland@mastodon.ie

      # Ukraine air raid alert system hacked, Air Force says as false nuclear, chemical warnings sound. Ukraine's air raid alert system was hacked late Nov. 1, the Air Force said, as sirens sounded across the country and people received false alerts warning of nuclear, chemical, and street fighting threats. https:// kyivindependent.com/ukraines-a…

      EugeneMcParland@mastodon.ieMastodon6d agoview on Mastodon ↗
    all of them →

Also covered reported alongside — the timeline has no entry for these yet

  1. 4 outlets Hackers Send Fake Nuclear Threat Alerts to Ukrainian and Russian Citizens

    first by Security Affairs, 6d ago · also Guardian, Fast Company, Times of India

    3 more headlines

and 9 smaller pieces

What people are saying 12 voices from 4 sites · best of 63 · verbatim

Still unanswered
  • Who exactly carried out the initial hack on Ukraine's app, and is it confirmed to be state-directed by Russia?
  • Were any personal data or links exploited beyond the fake alert messages?