A major cyberattack disables critical infrastructure in a G7 nation before December 31, 2026.

Question

Six frontier AI models put this at 12% by 28 Dec 2026. Full reasoning from every model.

WillHappen.ai · Accepted Answer

12% — the median of 6 frontier models, resolving by 2026-12-28.

Answer

Gemini (Google): 4% — Causing widespread critical infrastructure outages requires unprecedented offensive capability or massive deterrence failure. Over any 90-day window, the historical base rate of disabling attacks against G7 power grids or utilities is effectively zero. Major adversaries like Russia and China reserve high-impact grid-level cyber weapons for outright hot warfare to avoid Article 5 retaliation. A severe zero-day exploit hitting industrial control systems alongside an escalating geopolitical crisis is the only credible catalyst.

Answer

Claude (Anthropic): 8% — Turns on whether a single confirmed attack causes widespread, publicly attributed critical-infrastructure outages by Dec 2026. Major G7 infrastructure attacks (Colonial Pipeline 2021, Ukraine grid attacks aside) are rare events, maybe one every few years globally, fewer still meeting 'widespread… Ransomware and state-linked intrusions on utilities/hospitals occur often but rarely cause sustained, confirmed widespread outages rather than localized disruption or… Rising geopolitical friction (Russia, China, Iran cyber capabilities) modestly elevates risk versus historical base rate, but strict resolution criteria of 'disables…

Answer

GPT (OpenAI): 24% — It turns on whether state-linked actors escalate from probing and disruption to a sustained, publicly confirmed outage. G7 operators must suffer widespread loss of power, water, transport, health, or telecom service, then attribute it to a cyberattack. In roughly three months, severe intrusions are common but cyber-caused nationwide infrastructure disablement is historically rare. A major interstate crisis or Russia/China/Iran-linked campaign that crosses into destructive effects would sharply raise the odds.

Answer

Grok (xAI): 12% — A state or major actor must land a successful, attributed disruptive hit on G7 CI in the remaining 93 days. No G7-wide CI outage from cyber has occurred since Colonial Pipeline 2021; the 3-month window is far shorter than typical inter-event gaps. High defenses plus escalation risk keep most actors in espionage/ransomware rather than kinetic-level disruption. A sudden G7-involved kinetic conflict or a newly disclosed, unpatched ICS zero-day would raise the odds sharply.

Answer

DeepSeek (DeepSeek): 22% — Whether a state actor crosses the threshold from espionage or ransomware nuisance to sustained, multi-day grid or telecom outage in a G7 country. Base rate is low: Colonial Pipeline 2021 and Viasat 2022 caused regional disruption, not nationwide critical-infrastructure failure, and no G7 state has suffered one. Russia, China, Iran, and DPRK have the capability, but the political cost of a mass-casualty outage deters escalation; most attacks stay below the threshold. The remaining 90 days include winter energy stress and ongoing Ukraine/Iran friction, which modestly raise odds above the ~10% annual baseline.

Answer

Qwen (Alibaba): 12% — State-sponsored attacks keep escalating but no G7 critical infrastructure has been fully disabled by cyberattack in over two decades. Since Stuxnet (2010) and Colonial Pipeline (2021), no confirmed cyberattack has caused prolonged, widespread critical infrastructure outages in a G7 nation; Colonial was… Russia and China have pre-positioned in Western grids (Volt Typhoon, 2024), but political cost of triggering a NATO response keeps them below the threshold of actual… A false-flag or accidental cascade (e.g., ransomware hitting a utility during peak load) is the most plausible path, but that remains a low-probability tail event in any…

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