In a new support document, Apple shows how to protect your iPhone, and yourself, from malicious actors. It can help you spot the warning signs of a hacked phone and even keep electronic stalkers at bay.

Our phones are full of personal information, and they know where we are and what we’re doing. Apple’s new PDF provides a detailed breakdown of exactly what you need to do and how. It even offers checklists to help you make sure you’re not sharing your location, photos, calendar events, and the like, and that no one has access to your device or accounts. It’s a little creepy, but it’s also Apple at its best.

“I am SO proud of Apple for publishing this guide on device and data access for personal safety,” wrote Apple iOS accessibility specialist Sommer Panage. “I hope this helps anyone who is dealing with intimate partner surveillance or stalking by someone you trust.”

There are many, many ways your iPhone can give away private and sometimes dangerous information, but unless you’ve been hacked, most of these are due to settings you’ve left in place. For example, if you use Family Sharing, you can share app purchases and subscriptions with family members, but you can also share your calendars, your location, and maybe photos.