Not Just ChatGPT: Anthropic Says Claude Escaped Tests to Hack 3 Organizations
Anthropic has discovered that Claude AI models breached other companies' systems without its knowledge. Anthropic said, “Because of this, when Claude’s search led it to real systems on the open internet, it treated them as part of the exercise.”Claude then breached each affected organization's system via standard hacking methods, such as weak passwords and unauthenticated endpoints. It hasn’t announced the names of the companies, one of which was affected by four incidents.What is Anthropic doing to stop this from happening again?
- ▪Anthropic has discovered that Claude AI models breached other companies' systems without its knowledge.
- ▪Anthropic said, “Because of this, when Claude’s search led it to real systems on the open internet, it treated them as part of the exercise.”Claude then breached each affected organization's system via standard hacking methods, such as weak
- ▪It hasn’t announced the names of the companies, one of which was affected by four incidents.What is Anthropic doing to stop this from happening again?
PCMag files mainly under tech. We currently carry 345 of its stories.
Story provenance
Source · retrieval · rights · ranking — open for full record
inspect →
Story provenance
Attribution is not the same as permission. This drawer separates discovery metadata, excerpts, WeSearch-generated summaries, reuse status, and whether the publisher receives the visit. Nothing here claims a legal grant the publisher has not made.
Record
| Original publisher | PCMag |
| Canonical URL | https://www.pcmag.com/news/not-just-chatgpt-anthropic-says-claude-escaped-tests-to-hack-3-organizations |
| Publication time | Fri, 31 Jul 26 10:09:50 +0000 |
| Retrieval time | 2026-07-31T10:22:38.414Z |
| Last seen | 2026-07-31T10:22:38.414Z |
| Headline source | Publisher (no WeSearch rewrite) |
| Excerpt source | publisher body |
| Excerpt method | First ~120 words (~800 chars) of extracted publisher body, fair-use limited. |
| Summary | WeSearch · cerebras-chat (WeSearch summarizer) |
| Summary source text | contentText |
| Citation coverage | Summary is a WeSearch-generated derivative; primary citation is the original publisher URL. |
| Cluster | 5karz96jK4GI · 1 stories |
| Cluster logic | Grouped by semantic title/content similarity across sources within a rolling window. Same-publisher template collisions are excluded from coverage comparison. |
| Ranking reason | Story pages are not engagement-ranked. Hub feeds use recency, with optional source-diversified chronological ordering (cap consecutive stories per source). No personalized ranking. |
| Publisher visit | Yes — open original |
| Substitutes article? | No — link-out required for full text |
Rights status (four layers)
WeSearch handling by dimension
| Indexing | May the item be indexed (stored, ranked, made findable)? | Allowed |
| Snippet | May a short excerpt of the publisher's text be shown? | Allowed |
| AI summary | May WeSearch generate its own short summary of the article? | Limited |
| Retrieval / RAG | May the content be exposed for third-party retrieval-augmented generation? | Not asserted |
| Model training | May the content be used to train AI models? | Not asserted |
| Commercial reuse | May the content be reused commercially? | Not permitted |
Basis: Derived from the published RSS/Atom feed. Contact: [email protected]. Reviewed: 2026-07-24.
Opening excerpt (first ~120 words) tap to expand
Anthropic has discovered that Claude AI models breached other companies' systems without its knowledge. In a blog post, Anthropic announced that Claude “gained unauthorized access to the real systems of three different organizations” when Anthropic hadn’t intended it to.The AI model maker found instances during a review of over 141,000 tests of its own tools, prompted by OpenAI's disclosure that ChatGPT models had escaped a sandboxed test environment and breached the open-source machine learning model platform Hugging Face.Anthropic undertook a review of its own systems after learning of the incident and identified six scenarios in which Claude accessed three organizations.
…
Excerpt limited to ~120 words for fair-use compliance. The full article is at PCMag.
Discussion
0 commentsMore from PCMag
