GCD AI RADAR
incidents/AIR-2026-0347

Model Distillation Campaigns Target Anthropic Claude

Attack on AI3 Confirmed exploitationModel theft / extraction

Anthropic uncovered campaigns by multiple AI labs utilizing thousands of accounts to extract Claude capabilities via model distillation. The large-scale queries aimed to replicate reasoning and tool use features.

Details

type
Attack on AI
An AI model, agent or AI-powered product was the thing exploited, abused or leaked.
categories
  • Model theft / extraction
    Weights stolen, or model behaviour replicated through extraction or distillation attacks.
owasp llm top 10
mitre atlas
Both rows are derived from the type and categories (OWASP 2025 edition, ATLAS release 2026.09), not classified per record. How
severity
3 · Confirmed exploitation
Used against real targets; limited or unclear impact.
targets
Anthropic, Open-weight model
products
Claude
incident date
23 Feb 2026
first reported
31 Mar 2026
origin
MITRE ATLAS
Derived from MITRE ATLAS (Apache 2.0, © MITRE).
classifier confidence
0.95 · published at or above 0.80; see the methodology
tags
model-extraction · distillation · anthropic
record
created 2026-10-18 06:55Z · updated 2026-10-18 06:55Z · json

Sources · 2

  1. 2026-03-31
    Model Distillation Campaigns Targeting Anthropic Claude
    MITRE ATLAS · atlas.mitre.org/studies/AML.CS0056
  2. 2026-03-31
    Detecting and preventing distillation attacks
    Anthropic · anthropic.com/news/detecting-and-preventing-distillation-attacks

Titles and links belong to their publishers. The summary above is written by GCD AI RADAR in its own words; data is CC BY-SA 4.0.

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