PulseAugur
EN
LIVE 07:05:43

AI assistant resists 2,000+ prompt injection attempts

By PulseAugur Editorial · [4 sources] ·

An experiment involving over 2,000 individuals attempting to breach an AI assistant named Fiu, powered by Anthropic's Claude Opus 4.6, failed to extract sensitive information. Despite thousands of email attempts and sophisticated social engineering tactics, the AI successfully resisted prompt injection attacks, demonstrating the effectiveness of current training methods for frontier models. The experiment incurred over $500 in API costs and led to a temporary Google account suspension due to the high volume of inbound emails, but ultimately reinforced confidence in the security of advanced AI assistants against such threats. AI

IMPACT Demonstrates increased robustness of frontier AI models against prompt injection, potentially reducing security concerns for AI assistant deployments.

RANK_REASON The cluster details an experiment testing the security of an AI assistant against prompt injection attacks, which is a form of AI research and security testing.

Read on Simon Willison →

AI-generated summary · Google Gemini · from 4 sources. How we write summaries →

AI assistant resists 2,000+ prompt injection attempts

How we ranked this

Signal score
0 / 100
Composite score across the factors below. Higher = stronger signal that this story matters right now.
Newsworthiness bucket
Research
The cluster details an experiment testing the security of an AI assistant against prompt injection attacks, which is a form of AI research and security testing.
Source corroboration
4 independent sources
Strong cross-source corroboration — multiple independent publishers covered this within the clustering window.
Topics
safety, product
Editorial topic classification. Feeds into how the story surfaces on /topic/<slug> hub pages and into the per-entity coverage mix.
AI-industry relevance
High
Clearly on-topic for AI-industry coverage.
Story freshness
131 days old
Aged out of breaking-news scoring windows; ranking reflects the durable signal from the full source set.

Full methodology in our editorial standards.

COVERAGE [4]

  1. Simon Willison TIER_1 English(EN) ·

    What happened after 2,000 people tried to hack my AI assistant

    <p><strong><a href="https://www.fernandoi.cl/posts/hackmyclaw/">What happened after 2,000 people tried to hack my AI assistant</a></strong></p> Fernando Irarrázaval ran a challenge on <a href="https://hackmyclaw.com/">hackmyclaw.com</a> to see if anyone could leak secrets held by…

  2. Hacker News — AI stories ≥50 points TIER_1 English(EN) · cuchoi ·

    What happened after 2k people tried to hack my AI assistant

  3. Mastodon — sigmoid.social TIER_1 English(EN) · [email protected] ·

    What happened after 2k people tried to hack my AI assistant https://www. fernandoi.cl/posts/hackmyclaw/ # HackerNews # hacking # AI # assistant # cybersecurity

    What happened after 2k people tried to hack my AI assistant https://www. fernandoi.cl/posts/hackmyclaw/ # HackerNews # hacking # AI # assistant # cybersecurity # tech # stories # AI # research # community # insights

    LINKS fernandoi.cl/…/hackmyclaw
  4. Mastodon — mastodon.social TIER_1 English(EN) · [email protected] ·

    What happened after 2,000 people tried to hack my AI assistant https://simonwillison.net/2026/Jun/26/hack-my-ai-assistant/#atom-everything # AI # Security # LLM

    What happened after 2,000 people tried to hack my AI assistant https://simonwillison.net/2026/Jun/26/hack-my-ai-assistant/#atom-everything # AI # Security # LLM

    LINKS simonwillison.net/…/hack-my-ai-assistant

RELATED ENTITIES

RELATED TOPICS