I tell parents cyber safety is a moving target. The app popular with teens today is often out of vogue in just a few months. Today, Instagram is on every kids mobile device.

Instagram is a popular photos and video sharing and social networking site with millions of tweens and even elementary age kids, and many use it without incident, but are there issues for parents to be concerned about? Yes. Parents must know about Instagram privacy, cyberbullying, and other content concerns.

What is Instagram?

It’s an app that permits users to post pictures and videos taken with their smartphone to a social network. People within a user’s network then like and comment on those images, and vice versa.

Who uses it?

Instagram has 150 million monthly users, 60% of them outside the United States, according to Mashable. It has replaced Facebook as the favored social media site for students.

What’s the age requirement?

Like most other social networking sites, Instagram requires users to be age 13 or older per its Terms of Use. You can report an underage user and parents can delete their child’s account if necessary on Instagram’s Help Center.

What are the privacy settings?

Instagram gives users two options: private or public. Either way, bios are visible to all and can be where predators start looking for underage victims.

With the public setting, “[a]nyone signed into the Instagram application can view photos or videos on a public user’s Instagram profile . . . Once you set your posts to private, anyone who wants to see your child’s posts will have to send your child a follow request which they can then approve or ignore.” according to Instagram.

What info is being shared

When signing up the, the user has the option to include a phone number as part of their public profile.

Instagram also reveals user’s locations. Photographs ...