After several months of using Claude Code with Anthropic models through AWS, our access was suddenly revoked. AWS Trust & Safety said Anthropic had detected policy violations through its automated systems and instructed AWS to remove our account's access. AWS could not tell us which prompts or rules were involved and directed us to appeal to Anthropic.
We reviewed our prompt and access logs and found no suspicious activity. All usage came from people in the UK, matched our normal internal patterns, and showed no unusual IP addresses, times, billing activity, or CloudTrail events. The only notable activity was an application deployment involving Ansible and Ansible Vault. Other accounts in our organization were unaffected.
We have submitted an appeal, but because we accessed the models through AWS, we do not have a direct relationship with Anthropic. Has anyone experienced a similar suspension? How long did an appeal take, and is there any way to learn which policy or guardrail was triggered? We are also concerned that access could be revoked again without warning, since losing these models has a significant operational impact.
2 Answers
The provider may monitor or review usage because it remains responsible for enforcing its acceptable-use policies, even when the models are accessed through AWS. That does not necessarily mean your prompts are broadly shared, but the provider can receive information needed for abuse detection and enforcement. Since AWS says it does not decide the violation or see the details, the appeal with Anthropic is likely the only route to restoration.
Anthropic’s trust-and-safety systems can flag repeated attempts to generate malware, perform security testing, or create other dangerous material, even when the intent is legitimate. It is generally safer to keep coding assistance and security-testing workflows separated across providers and to avoid repeatedly probing refusal boundaries.
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