# Does Claude Code Leak Your Email?

> Published 2026-08-12 · https://www.promptzone.com/aleksandr_nakamura/does-claude-code-leak-your-email-2c6g

Claude Code sends curl requests that include a user's real email address inside the User-Agent header. The issue was flagged on [a recent Hacker News thread](https://github.com/anthropics/claude-code/issues/78431) with 36 points and 29 comments.

> **Product:** Claude Code | **Issue:** Email in User-Agent | **Discussion:** 36 points, 29 comments | **Source:** GitHub issue

## What the Leak Actually Does

The tool constructs curl commands that embed the authenticated user's email directly in the request headers. Any server or proxy logging these requests receives the email without additional consent or obfuscation.

The pattern appears during normal code generation or API calls that rely on external services. No user configuration currently masks or replaces this value.

## Scale of the Discussion

Early comments on the thread focus on reproducibility. Multiple users confirmed the header appears in their own logs when running the same commands.

The 29 comments break down into three main clusters: confirmation of the behavior, questions about data retention by third parties, and requests for an official fix timeline.

## How to Check If You Are Affected

Run a packet capture or inspect your local logs while executing a Claude Code command that triggers network calls. Look for the User-Agent field containing an email pattern.

Users can also add a temporary proxy such as mitmproxy to inspect headers before they leave the machine. No code changes are required for this verification step.

## Privacy and Security Implications

Embedding a personal email in every outbound request creates a persistent identifier across services. Even if the primary API endpoint is trusted, intermediate CDNs or logging systems receive the data.

This differs from standard OAuth or API-key flows that avoid exposing account identifiers in headers. The current implementation bypasses that separation.

## Alternatives and Workarounds

Developers seeking similar functionality have tested several options that avoid the header leak.

| Tool | Email Exposure | Header Control | License |
|------|----------------|----------------|---------|
| Claude Code | Yes | None | Proprietary |
| Cursor | No | User-defined | Proprietary |
| Continue.dev | No | Configurable | Open source |
| Aider | No | Standard | Open source |

## Who Should Pause Use

Teams handling client data or operating under strict privacy policies should pause until a fix ships. Individual hobbyists may accept the risk if they rotate accounts frequently.

Organizations already using Anthropic's enterprise tier should open a support ticket referencing the GitHub issue for an official statement.

## Bottom Line / Verdict

The current implementation trades convenience for an unnecessary privacy exposure that other coding assistants already avoid. A patch that removes or hashes the email would resolve the core complaint without changing user workflows.

The episode highlights how small header decisions can surface in public logs and affect trust in AI coding tools.