Audits and hardens process historian servers (OSIsoft PI, Honeywell PHD, GE Proficy, AVEVA Historian) in OT environments: Purdue-level network placement, interface access control, secure DMZ replication via data diodes or PI-to-PI connectors, SQL injection prevention, and process data integrity.
Install
npx skills add mukul975/Anthropic-Cybersecurity-Skills --skill securing-historian-server-in-ot-environmentnpx skills add mukul975/Anthropic-Cybersecurity-Skills --skill securing-historian-server-in-ot-environment -a claude-code -gnpx skills add mukul975/Anthropic-Cybersecurity-Skills --skill securing-historian-server-in-ot-environment -a codex -ggemini skills install https://github.com/mukul975/Anthropic-Cybersecurity-Skills.git --path skills/securing-historian-server-in-ot-environmentgh skill install mukul975/Anthropic-Cybersecurity-Skills securing-historian-server-in-ot-environmentgit 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/securing-historian-server-in-ot-environment ~/.claude/skills/securing-historian-server-in-ot-environment # Claude Code
cp -R /tmp/mukul975__Anthropic-Cybersecurity-Skills/skills/securing-historian-server-in-ot-environment ~/.agents/skills/securing-historian-server-in-ot-environment # Codex, Cursor, Gemini CLI, Copilot, OpenCode