Apple iphone How to encrypt the iphone address Book encryption

Step 1th: Find "Settings" in the iOS7 system as shown in the following figure

2nd step: Then click "General" in the image above

3rd Step: Then click on "Access Restrictions" in general, now we directly open the "Access restrictions", if we have opened access restrictions, you can directly enter the password, please skip to step 7th;

4th step: If you do not open access restrictions, we now open access restrictions, we will see that the main list of many applications are grayed out, to modify, first click on the top of the "Enable access restrictions" button;

5th step: Because of the large access restrictions that will affect many important settings, Apple enforces a four-digit password for security reasons. Press Keypad to enter the password, in order to prevent the next person peeping, the password on the phone will be unified to point display;

6th step: Again enter four-digit password to ensure the same password as before, and remember;

7th step: After the password is successfully set, "Access Restrictions" will be available, and the main list can be found in the "Address Book" in the Privacy item, click;

8th step: The Address Book set defaults to "Allow changes", that is, the application to access the Address book, can be prompted and allowed. In the list below we see that there are already some applications that have access to the traffic, in this case there are alipay purses and micro-letters that are forbidden to be visited by Alipay purse. At this point you can disable access to the application shutdown switch alone. If you want to lock the current settings and do not allow new application access, you also need to click "Do not allow changes." At this point, the list will be locked and cannot be modified;

Click "Do not allow changes" to disable all application Address Book access

The current state of the application list will be locked and grayed out after disabled

The set is successful with a lock in front of the address book.

Friendly Tips

If we set this up to use to the location of the video can not be convenient, like the current micro-letter, easy to believe that we will not automatically find the relevant contact person.