Already real: Automated scams & deepfake pornography. You can deepfake a real time video call to look and sound like someone else. If you're used to entering passwords this is easy to solve, but it's already a billion dollar industry.

Moving into the future slightly: they're already getting decent at video games, and if they can win at Counterstrike they can probably also win at real-life Drone Warfare.

I'd say the risks are mostly still hypothetical, though. There's a ton of reading out there if you take that idea seriously, but I don't blame you if you dismiss it as being a bit too "Science Fiction"