Signal’s Meredith Whittaker on AI chatbots: ‘These are not your friends’

Signal President Meredith Whittaker has a message for anyone who’s been getting a little too comfortable with their chatbot: snap out of it.

In a recent interview with Bloomberg, she laid it out plainly: “These are not your friends. These are not conscious beings. These are not sentient interlocutors.”

It’s a refreshingly blunt take at a time when the industry has been working overtime to anthropomorphize AI — giving them names, personalities, and even voices that sound caring. Whittaker isn’t buying it.

She admitted she uses AI tools herself, but only in a limited capacity. “To format a document here and there,” she said. But she draws a hard line at using them for thinking or writing. “I don’t ask them questions. I’m very serious about my thinking and writing, and I don’t want the process of working through an idea […] to be foreclosed or eclipsed by the response of a system that’s averaging what’s already out there.”

That last part is key. She’s essentially saying that relying on a chatbot to think through an idea is outsourcing your own cognition to a statistical model that’s just recycling the average of everything it’s seen. If you’re a writer or a researcher, that should give you pause.

Whittaker also took aim at Microsoft AI CEO Mustafa Suleyman’s vision of a future where Copilot handles your Christmas shopping — eavesdropping on family group chats to figure out who wants what, then making purchases on your behalf. She didn’t mince words.

“What you’ve just described is a system with very pervasive access across multiple applications and services,” she said. “In the context of Signal, it would constitute a kind of a backdoor.”

Think about what that actually requires: your credit card info, your browsing history, access to your Signal messages, the ability to message your siblings as if it were you, your home address, your calendar. That’s not a shopping assistant. That’s a surveillance system with purchasing power.

Whittaker’s point is that this level of integration isn’t just a privacy concern — it fundamentally breaks the model of what a secure messaging app like Signal is supposed to be. If a third-party AI has access to your conversations and can act on them, the encryption doesn’t matter anymore. The backdoor isn’t in the code; it’s in the permissions you’ve granted.

I’ve been saying similar things for a while now, but it hits differently coming from Whittaker. She’s not some random tech critic; she’s the president of the company that runs the gold standard for encrypted messaging. When she calls something a backdoor, she knows exactly what that word means.

The broader issue here is that the AI industry has been pushing this narrative of helpful, friendly assistants that just want to make your life easier. But the price of that convenience is access — deep, pervasive access to the most intimate parts of your digital life. And once you give that access, you can’t take it back.

Whittaker’s advice is simple: don’t confuse a statistical model with a person. Don’t treat your chatbot like a friend, a therapist, or a personal assistant who has your best interests at heart. It’s a tool. A useful one, sometimes. But it’s not your friend.

And if a company asks you to give it access to your group chats, your credit card, and your ability to speak on your behalf? Maybe pause and ask yourself what exactly you’re getting in return.