# What Leaked About You (agent skill)

> What Leaked About You is an agent skill (a SKILL.md file) from UseOSINT/Skills. Check and interpret data-breach exposure for an email, username, phone or name using Have I Been Pwned, the Pwned Passwords k-anonymity range API, DeHashed, IntelX and… It works with Claude Code and Cursor and has 48 GitHub stars across a repository of 2 listed skills.

Check and interpret data-breach exposure for an email, username, phone or name using Have I Been Pwned, the Pwned Passwords k-anonymity range API, DeHashed, IntelX and Snusbase. Use when checking breach or leak exposure, finding which services an account was registered with, interpreting a combolist or credential dump, assessing credential compromise, or auditing your own leaked personal data.

## Key facts

| Fact | Value |
|---|---|
| Repository | https://github.com/UseOSINT/Skills |
| Skill path | skills/what-leaked-about-you/SKILL.md |
| Skill name | what-leaked-about-you |
| GitHub stars | 48 |
| Installs on skills.sh | 57,719 |
| License | MIT |
| Skills in repo | 2 |
| Plugin marketplace | useosint |
| Official | no |
| Works with | Claude Code, Cursor |
| Category | Data & analysis |
| Last commit | Aug 3, 2026 |

## When it triggers

- Use when checking breach or leak exposure, finding which services an account was registered with, interpreting a combolist or credential dump, assessing credential compromise, or auditing your own leaked personal data.

## Add this skill

### Claude Code

```sh
/plugin marketplace add UseOSINT/Skills
/plugin install useosint@useosint
```

In the Claude apps, zip the skill folder and upload it under Customize > Skills > + > Upload a skill (code execution must be on).

### ChatGPT / Codex

```sh
git clone --depth 1 https://github.com/UseOSINT/Skills.git
cp -r Skills/skills/what-leaked-about-you .agents/skills/what-leaked-about-you   # repo; ~/.agents/skills for all projects
```

### Cursor

```sh
git clone --depth 1 https://github.com/UseOSINT/Skills.git
cp -r Skills/skills/what-leaked-about-you .cursor/skills/what-leaked-about-you   # project; ~/.cursor/skills for all projects
```

Sources (checked 2026-10-07): https://code.claude.com/docs/en/skills, https://support.claude.com/en/articles/12512180-using-skills-in-claude, https://learn.chatgpt.com/docs/build-skills, https://cursor.com/docs/context/skills

skills.sh listing: https://www.skills.sh/UseOSINT/Skills/what-leaked-about-you

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Canonical page: https://appsgit.com/skills/useosint-what-leaked-about-you
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