AI can now decode your brain activity—a fancy way of saying mind reading. Big tech companies like Meta (META) are backing research into this field, including products that can decode thoughts without requiring surgery. The big question: what does our world look like if big tech companies can read your mind?

Tech companies are building off neurotech advancements in the medical world. Meta is backing a team of neuroscientists whose research uncovered nonsurgical ways to detect brain activity and speech to interpret your thoughts. In 2022, Apple (AAPL) also filed a patent for AirPods that uses EEG technology to measure biosignals and electrical activity of a user's brain. Noninvasive mind reading can be revolutionary in medicine for patients - it can also be used by big tech for consumer-facing products that put privacy at risk.

Neurorights advocates believe our thoughts are the last piece of data we have left to ourselves. That’s why they are now fighting for legislation that would safeguard our mental privacy while tech companies continue funding brain-scanning research.

If you’re going to future-proof your portfolio, you need to know what’s NEXT in the business of neurotechnology. In this series, Yahoo Finance will feature stories that give a glimpse at the future, and show how companies are making big moves today that will matter tomorrow.

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