Learn about prompt injection, AI security, text manipulation, and productivity tips from our experts.
Learn how prompt injection attacks work, real-world examples, and how to protect your AI assistants from malicious instructions. Essential reading for anyone using ChatGPT, Claude, or other AI tools.
Apple Intelligence routes each request to one of three places: on-device, Private Cloud Compute, or the ChatGPT extension. The privacy stories are completely different. This piece separates them, explains what PCC's verifiability actually means, and gives an enterprise MDM checklist for each tier.
A short and honest tour of where things stand. The cookie deprecation that never happened, the replacement (Privacy Sandbox) that did happen but then got shut down in October 2025, and the small handful of APIs — CHIPS, FedCM, passkeys — you should actually plan around.
A practical guide for engineering and product teams. What GPAI obligations are live, what the Digital Omnibus actually postponed, Article 50 transparency duties, and a builder's checklist that doesn't pretend to be legal advice.
Model Context Protocol went mainstream in 2025–26 — and its attack surface caught up fast. Two checklists: one for operators running MCP clients, one for authors writing MCP servers. Pairs with our new MCP Inspector tool.
The "ignore previous instructions" classics are mostly patched. What still lands against GPT-5.x, Claude 4.x, and Gemini 3.x is harder to spot — indirect injection, image-based attacks, MCP tool poisoning, memory poisoning, supply chain. 12 cases with mitigations.
The weirdest header on the web, decoded. Every token in a modern User-Agent — which ones lie, which ones are frozen, how Client Hints are replacing the whole mess, and whether spoofing your UA actually helps. Plus a bot-detection cheat sheet.
Geolocation accuracy, ASN lookups, reverse DNS, IPv6 prefix leaks, CGNAT, and the myths that won't die. A grounded breakdown of what a site does and doesn't learn from your IP — and what a VPN really changes.
Every HTTP request you make carries 20–30 headers. This post walks through 15 of them — User-Agent, sec-ch-ua, Accept-Language, Referer, Cookie, DNT/Sec-GPC, X-Forwarded-For and more — ranked by how much each one reveals, with a per-header mitigation.
Canvas, WebGL, AudioContext, installed fonts, hardware concurrency, locale — six fingerprinting signals with entropy badges, real examples, and what each one actually gives away. Plus what defences work in 2026 and what's theatre.
WebRTC leaks expose your real IP even with a VPN running. What the leak actually is, why browser-extension VPNs almost always leak, and step-by-step fixes for Chrome, Firefox, Edge, Safari, and Brave — plus the VPN-level fix that survives browser updates.
The 2026 attack surface most users underestimate. Six realistic scenarios — inbox summaries, Slack digests, PDF readers, browsing agents — where untrusted content smuggles instructions into ChatGPT, Claude, and AI agents, plus a layered defence checklist.
A practical, GDPR-aware workflow for stripping personal data from emails, tickets, and documents before they hit ChatGPT, Claude, or Gemini. What counts as PII, mask vs. redact vs. tokenize, and a 5-step process you can run in under a minute.
A copy-and-paste-ready checklist for red-teaming LLM applications: direct injection, jailbreaks, indirect injection, data exfiltration, tool abuse, and operational safety. Includes expected safe behaviour and a scoring template.
Real-world prompt injection attacks with code examples and explanations. Learn to recognize these patterns before they trick your AI assistants. Includes severity ratings and prevention tips.
Practical step-by-step guide to securing your ChatGPT conversations from prompt injection attacks. Includes screenshots, examples, and free tools to implement in under 5 minutes.
Learn how prompt injection attacks work, real-world examples, and how to protect your AI assistants from malicious instructions. Includes 50+ attack patterns and free detection tool.
Discover how attackers use invisible Unicode characters (ZWSP, ZWNJ, NBSP) to hide malicious instructions and bypass AI security filters. Learn detection and prevention techniques.