Detecting Email Account Compromise

Mahipal

Detect compromised O365 and Google Workspace email accounts by analyzing Unified Audit Logs and Azure AD sign-in logs for impossible travel, inbox rule creation/deletion (Set-InboxRule, New-InboxRule), external mail forwarding rules, and unusual Microsoft Graph API access or OAuth token use.

Install

npx skills add mukul975/Anthropic-Cybersecurity-Skills --skill detecting-email-account-compromise

npx skills add mukul975/Anthropic-Cybersecurity-Skills --skill detecting-email-account-compromise -a claude-code -g

npx skills add mukul975/Anthropic-Cybersecurity-Skills --skill detecting-email-account-compromise -a codex -g

gemini skills install https://github.com/mukul975/Anthropic-Cybersecurity-Skills.git --path skills/detecting-email-account-compromise

gh skill install mukul975/Anthropic-Cybersecurity-Skills detecting-email-account-compromise

git clone --depth 1 https://github.com/mukul975/Anthropic-Cybersecurity-Skills /tmp/mukul975__Anthropic-Cybersecurity-Skills
mkdir -p ~/.claude/skills ~/.agents/skills
cp -R /tmp/mukul975__Anthropic-Cybersecurity-Skills/skills/detecting-email-account-compromise ~/.claude/skills/detecting-email-account-compromise   # Claude Code
cp -R /tmp/mukul975__Anthropic-Cybersecurity-Skills/skills/detecting-email-account-compromise ~/.agents/skills/detecting-email-account-compromise   # Codex, Cursor, Gemini CLI, Copilot, OpenCode

Install

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