These are 10 security things I think you should know/do about iOS11.
You can choose a passcode from 4 to 1,000,000 digits!

There is an option to automatically erase all Data after 10 failed passcode attempts!

You can temporarily deactivate the Touch ID!

Open Settings
- Tap Emergency SOS
- Turn on “Works with 5 Clicks”
- Turn off “Auto Call”
Disable Lock Screen Features!

Two-Factor Authentication for Apple ID

Enable "Find my iPhone"

Disable Messages Preview

Use Safari - User/Settings Privacy

Safari includes cross-site tracking prevention, which will reduce sites like Amazon or Google from using your browsing history to suggest products in advertisements (which can be a good thing depending on your point of view). Additionally, Safari can integrate with third-party content blockers from the App Store to further reduce the advertisements you see while surfing the web.
Use a Third-Party VPN on public Wifi
