With data increasingly being stored in the cloud, documents and media being easily transmitted with a click, and devices signaling their locations, the risks of your personal information falling into the wrong hands has risen with the advent of smartphones.
Your iPhone collects enormous amounts of data, which can include information about your personal habits and highly sensitive personal identifiable information (PII). Thankfully, iOS 8 is full of features and settings that can tighten up your iPhone-based privacy and security.
Turn Off Location Services
As useful as it can be, constantly leaving Location Services enabled not only drains your battery and eats up your cellular data allotment, it also broadcasts your location to Apple and whomever else is accessing Apple’s data. Unless you’re actively using it for navigation, turn Location Services off by navigating to Settings-> Privacy->Location Services.
Turn Off Location Sharing
When you do have Location Services enabled, your iPhone will broadcast your location to other users, not just to Apple. For those situations where you do need Location Services on but don’t feel like sending up a flare to Apple consumers near you, disable location sharing by navigating to Settings->Privacy->Location Services->Share My Location.
Limit Ad Tracking
Apple (like everyone else) is tracking your behavior and using it to generate ad revenue. By default, Ad Tracking is enabled. In fact, there’s no option to turn off Ad Tracking; instead, you have to turn on “Limit Ad Tracking”. Apple has a lot more information about Ad Tracking, along with instructions on how to limit ad tracking on your iPhone and iTunes.
Prevent Messages & Emails From Showing On The Lock Screen
This tip is geared more towards physical security. The iPhone notifications are defaulted to show a preview of your incoming messages on the lock screen, which might be a bit embarrassing, depending on who might be in the room. To accomplish this, go to Settings->Notifications->Messages and disable “Show Previews”.
Dig Into The Privacy Menu
The Privacy section has a lot more than just Location Services and ad tracking; it also has listings of every app that has requested access to your contacts, calendars, reminders, photos and even your microphone. Navigate to Settings->Privacy to view all the entries.
There are many many more tweaks for iOS 8 in the privacy realm. For more tips and tricks, like blocking cookies and turning off the credit card auto-fill in Safari, check out the article over at WonderHowTo.