How to hide profile pictures on Facebook?

[Emma. ♕]

Facebook now has set the profile album to friends. If you wanna hide those photos in your facebook, you have to do it one by one.
Go to your timeline, click on your profile picture so it is opened, on the right side of the picture (the white portion), below your name, there shows the date you posted your picture, right beside the date, there's a button you can choose who do you want share your photo with.

Unfortunately, if you have many photos, you have to do it one by one. If you're lazy, you could just delete all rest of your photos.

I've set all my pictures in profile picture album as 'Only Me' so that only me could see my profile picture album, and other people can't click into my album.

Hope this helps
Emma. x