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Poison Claude Sells Discounted Claude Access While Its Operator Sees Every Customer Prompt

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Poison Claude Sells Discounted Claude Access While Its Operator Sees Every Customer Prompt

Security researchers identified multiple underground services offering unauthorized access to Anthropic's Claude AI models, including one called Poison Claude that advertises discounted access to various Claude versions. The operator of such services gains visibility into customer prompts and interactions with the models.

Why it matters: Organizations and individuals using Claude through these unauthorized channels expose proprietary data and intellectual property to adversaries who monitor all prompts, plus they risk malware, data theft, and legal liability for accessing stolen services.

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threat intel

Poison Claude Sells Discounted Claude Access While Its Operator Sees Every Customer Prompt

Security researchers identified Poison Claude and similar services on cybercrime forums offering unauthorized access to Anthropic's large language models at discounted rates. The operator of Poison Claude gains visibility into customer prompts sent through the service, creating both privacy and security risks for users.

Why it matters: Organizations and individuals using these services expose sensitive data in their prompts to threat actors, and Anthropic customers face potential abuse of model access through unauthorized reselling that undermines their usage controls.

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First seen by Cybersecurity Tracker

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Correction

Correction recorded as of .

threat intel

Poison Claude Sells Discounted Claude Access While Its Operator Sees Every Customer Prompt

Security researchers identified Poison Claude and similar services on cybercrime forums offering unauthorized access to Anthropic's large language models at discounted rates. The operator of Poison Claude gains visibility into customer prompts sent through the service, creating both privacy and security risks for users.

Why it matters: Organizations and individuals using these services expose sensitive data in their prompts to threat actors, and Anthropic customers face potential abuse of model access through unauthorized reselling that undermines their usage controls.

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