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HomeDocsClaude Documentation 24 Aug 2026
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Security and data handling changedclaude-tag/concepts/security-and-data

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4848### Network egress
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50Outbound traffic from a channel session's sandbox is default-deny. Requests go only to hosts an allow layer covers, and the layers are a [connection's Allowed websites](/docs/claude-tag/admins/connections/custom#fill-out-the-custom-tool-form), the [bundle's Domains tab](/docs/claude-tag/admins/add-connections#allow-a-host-without-a-credential), and the network access setting of the [environment](/docs/claude-tag/concepts/glossary#environment) the scope's sessions run on. A new environment's default level, Trusted access, already covers a [documented set of package registries and developer hosts](https://code.claude.com/docs/en/cloud-environments#default-allowed-domains). Every request gets one of three outcomes:
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52* **Matches a credential rule.** The credential is attached at the boundary and the request proceeds.
53* **Matches only an allowlist.** The host is on the Domains tab or allowed by the environment's network access setting; the request is sent without credentials.
54* **Matches nothing.** The request is blocked outright; the host is unreachable rather than merely unauthenticated.
50Outbound traffic from a channel session's sandbox is default-deny. Requests go only to hosts an allow layer covers, and the layers are a [connection's Allowed websites](/docs/claude-tag/admins/connections/custom#fill-out-the-custom-tool-form), the [bundle's Domains tab](/docs/claude-tag/admins/add-connections#allow-a-host-without-a-credential), and the network access setting of the [environment](/docs/claude-tag/concepts/glossary#environment) the scope's sessions run on. A new environment's default level, Trusted access, already covers a [documented set of package registries and developer hosts](https://code.claude.com/docs/en/cloud-environments#default-allowed-domains). See [Agent Proxy](/docs/claude-tag/concepts/agent-identity#agent-proxy) for what happens to a request under each layer.
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5652<img className="block dark:hidden" src="https://mintcdn.com/claude-ai/Tf9m3OvmKAZp3uXC/images/claude-tag/diagrams/proxy-decision.svg?fit=max&auto=format&n=Tf9m3OvmKAZp3uXC&q=85&s=a4aecacf4e23944d5a2ecaacf6cf95a1" alt="Flow diagram across two zones. Inside Anthropic's infrastructure, a session sandbox that holds no credentials sends every outbound request to Agent Proxy, which matches it against admin rules. Three outcomes branch toward your systems: on a rule match, the credential is attached at the boundary and the request proceeds; on an allowlist-only match, from the bundle's Domains list or the environment's network access setting, the request is sent without credentials; on no match, the request is blocked entirely (the default-deny outcome) and the host is unreachable." width="1000" height="400" data-path="images/claude-tag/diagrams/proxy-decision.svg" />
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