https://blog.lynxflow.co/en/tags/privacy/Recent content in Privacy on Lynx Tech BlogHugo -- gohugo.ioenMon, 31 Aug 2026 00:00:00 +0800https://blog.lynxflow.co/en/posts/llm-privacy-self-hosted-gateway-guide/Mon, 31 Aug 2026 00:00:00 +0800https://blog.lynxflow.co/en/posts/llm-privacy-self-hosted-gateway-guide/<img src="https://blog.lynxflow.co/images/llm-privacy-self-hosted-gateway-guide.png" alt="Featured image of post Stop Pasting API Keys and Bank Cards into LLM Relays: A Guide to Self-Hosted Privacy Gateways" />Using a third-party LLM relay to access Claude, GPT, or Gemini is cheap and convenient—but have you considered this: the relay operator can see every single word you send to the model. That includes API keys you casually paste in, bank card numbers, login passwords, ID numbers, medical records&hellip; all sitting in someone&rsquo;s server logs, in plaintext. This isn&rsquo;t paranoia—it&rsquo;s architecture. A relay is fundamentally a reverse proxy: your request hits their server, gets unwrappedhttps://blog.lynxflow.co/en/posts/whatsapp-scam-alert-on-device-ai-privacy/Sat, 29 Aug 2026 08:00:00 +0800https://blog.lynxflow.co/en/posts/whatsapp-scam-alert-on-device-ai-privacy/<img src="https://blog.lynxflow.co/images/whatsapp-scam-alert-on-device-ai-privacy.png" alt="Featured image of post WhatsApp Anti-Scam: AI Judges Scams On-Device, Not a Single Byte of Messages Leaves for the Cloud" />Anti-scam usually means scanning messages in the cloud. WhatsApp goes the opposite way—it puts the scam-detecting AI on the phone itself, so not a single byte of message content leaves the device. In August 2026, WhatsApp began a limited test of an opt-in anti-scam feature called Scam Alert (reported the same month by Malwarebytes, PCMag, Forbes, and the Meta Engineering blog, with technical analysis from InfoQ). Its core design: classifying messages from non-contacts for scams happens entirely