A tall, dark figure that appears in corners. Report him as an "Intruder."

During the first few minutes, pay close attention to the layout of each room. Knowing exactly where every chair and poster is located makes spotting anomalies much faster.

Some events will cause your character's stress meter to rise. You may need to perform specific grounding tasks (like clicking specific icons or taking deep breaths in-game) to keep it from maxing out. Tips for Survival

Use your computer to cycle through camera feeds. Look for any "anomalies" or changes in the environment.

Not all threats are visual. If you hear scratching, whispering, or heavy breathing, switch feeds immediately to find the source.