Enemies see through spy mission windows.

[AutoCept]

Sometime in the past couple of months a patch has broken enemies being able to see through spy window missions. It started with the little laser drones detecting you but seems to have escalated to pretty much all enemies noticing you.

[Deus-Ex-Vesania]

Let me introduce you to the concept of windows.

Joke aside, that's actually supposed to be a bug? I always just worked with it... 😐

[AutoCept]

Yeah. Realism aside there's a good reason for it. It gives new players a good way to see their goal in spy missions without making them instantly fail for taking a peak in the room. So they can think about what they want to do before committing to it.

Also the rooms and patrols just literally aren't designed for it. There's alarmbot patrols that have 3-5 seconds of tolerance to hack the console before you're seen, and those scale up so strong you can't silently kill them before-hand.