Security Service is a city-specific subscription buff. While it's active, your businesses on that city's board auto-collect their revenue every 4 hours while you're offline. You'll see the collected cash waiting when you return.

How to Get it

Buy it from the in-game store for the city of your choice.

Notes & Limits

One purchase covers 30 days for the chosen city. It only takes effect during offline time — when you're actively playing, you collect the normal way by landing on the business.