Your AI Chatbot Is Talking Behind Your Back
A 2026 study found the biggest AI assistants quietly pass your conversations to advertising and analytics networks. Here's what that means for you.
The news
You open a chatbot, type something personal, and assume it stays between you and the machine. New research says otherwise.
In May 2026, researchers at the IMDEA Networks Institute published a study called LeakyLM that examined the four most popular AI assistants: ChatGPT, Claude, Grok, and Perplexity. Their finding, first reported by Decrypt, is blunt. Every one of them quietly shares user data with outside advertising and analytics companies, including Meta, Google, and TikTok.
The researchers counted more than 13 tracking tools built into these services. Not one of them is spelled out to users in plain language. As the team behind the LeakyLM project put it, most people have no way of knowing any of this is happening.
What actually leaks
Every time you open a chat, small pieces of software hidden inside the web page "phone home" to ad networks. They send along who you are, what page you're on, and in some cases what you typed.
The most common leak is the web address of your conversation itself. That sounds harmless. It isn't. The researchers point out that leaking that address can be the same as leaking the whole conversation, because on some services anyone holding the link can read the chat. As TechXplore reported, weak or missing access controls mean a link alone can unlock the content behind it, including for the trackers who receive it.
The worst offender: Grok, the assistant from xAI, was the most exposed. Guest conversations there are public by default, with no login required to read them. In the study, TikTok's tracker received not just the link but the actual message text, effectively a copy of the conversation.
ChatGPT and Claude came out better on this specific point. Your chats there aren't public unless you deliberately choose to share them. But even those two still hand over conversation links and identifying details, like advertising cookies, to Meta and Google.
And here's the part that stings. The study describes how those scattered signals, cookies, scrambled versions of your email address, and behind-the-scenes tracking, can be stitched together into a lasting profile that points back to the real you. Turning off non-essential cookies helps a little, but the researchers found it isn't always enough. In some cases the tracking fires no matter what you click.
Why this happens
None of this is an accident or a one-off bug. It's how the free, cloud-based model works. When a company gives you a powerful assistant at no charge, your activity is part of what pays the bill. The industry press has been tracking the same pattern: chatbots quietly feeding identifiers to Google, Microsoft, and other analytics providers, as MediaPost documented in its own reporting.
The uncomfortable truth is simple. If your conversation travels across the internet to a company's servers, it can be logged, linked, shared, and sold along the way. Every extra stop is another place your words can leak. Privacy settings and cookie banners are just patches over a design that was never built to keep your thoughts to yourself.
Think about what people actually type into these tools now. Health worries. Money problems. Legal questions. Work they can't show anyone yet. Drafts of things they'd never say out loud. That's not "data." That's your inner monologue, and right now it's being copied to companies whose entire business is knowing more about you.
The fix isn't a better setting. It's a different design.
You can dig through privacy menus and reject every cookie you're offered. The study shows that still won't fully close the gap. As long as your conversation has to leave your hands to work, someone else gets a look.
So we built VaultAI to remove the whole problem at the root. VaultAI is your own private AI, and it lives entirely on a device you hold in your hand. There's no account. No cloud. No monthly bill. Nothing to leak, because nothing leaves.
It runs on your device
Your questions and answers stay with you. They never travel to a company's servers, so there's no trip for a tracker to hitch a ride on.
No trackers, no ad networks
There are no hidden tools phoning home to Meta, Google, or TikTok. VaultAI isn't paid for by watching you. You paid for it once, and that's the end of it.
It works offline
Unplug the internet and it still works. That's the proof: if it runs with no connection, your words physically cannot be sent anywhere.
Ask it anything. The private health question, the money worry, the idea you're not ready to share. It answers freely and without judgment, and the conversation ends where it started, with you. No one is reading over your shoulder. No profile is being built. No link is being passed around.
The AI world is racing to make assistants more powerful. Almost no one is racing to make them private. That's the gap VaultAI was made to close. The convenience of a smart assistant, without handing your life to advertisers to get it.
Your conversations should be yours. With VaultAI, they finally are.
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