Chat‑bots are silent confessional booths that harvest every prompt. The default settings of the “big six” AI firms give them de‑facto ownership of your conversation, and “opt‑out” toggles are often just smoke‑and‑mirrors.

Intro: Why a chatbot prompt feels like shouting in a crowded café.

The Six‑Company Expose: Stanford HCAI study.

The Default Trap: Opt‑out is the exception; defaults give corporations “property of the corporation” status.

The Anonymity Fairytale: Re‑identification can hit >99 % with a few data points.

Human‑in‑the‑Loop: Low‑paid contractors manually review chat logs.

The Seven Deadly Sins of Data Sharing:

1. Identity Anchor
2. Financial Blueprint
3. Digital Keys
4. Corporate Confessional
5. Unprotected Medical Record
6. Creative Theft
7. Emotional Vulnerability

Algorithmic Bias & The Inference Trap: Harmless “low‑sugar dinner” request tags you as “health‑vulnerable,” feeding risk scores across the ecosystem.

Corporate Espionage by Accident: 11 % of employee‑pasted data is confidential; real‑world leaks (Samsung code, credential dumps).

Tactical OpSec – The Ghost Browser:

• Go account‑less
• Use a hardened browser only for AI
• Mask your IP with a no‑log VPN

Tactical OpSec – Settings Audit

• Avoid “Sign‑in with Google/Facebook” – use a masked email + strong password
• Turn off Chat History & Training (ChatGPT) / Apps Activity (Gemini)
• Disable “Memory” / personalization features
• Use Incognito/Temporary Chat where offered
• Delete history & request erasure after each session
• Run Incogni to notify data brokers

The Human Sovereignty

Every time you refuse to paste sensitive data, you reclaim a slice of privacy.

Links & Resources:

• Stanford: HCAI Study (2025)
• UBC Privacy Matters – Understanding privacy implications of AI chatbots
• Norton Blog – What Not to Share With Chatbots
• Mozilla Foundation – Protecting privacy from ChatGPT & other AI
• Lumo App – Zero‑access Encrypted Chat

Connect:

• Website: https://impracticalprivacy.com
• YouTube: @ImpracticalPrivacy
• X/Twitter: @The_IP_Podcast
• Newsletter: Subscribe

Stay skeptical, stay safe, and remember: your thoughts are the last truly private thing you own.

Stay Impractical. 🚀