Half of you have no idea how much of your info is public on Facebook

In spite of recent concerns about privacy and surveillance on social media, most of us are extremely lax about our public/private boundaries on the biggest network of them all: Facebook.

A third of us haven’t checked our privacy settings in a year or longer — in spite of the fact that Facebook changes those settings and policies quite frequently.

And we’re giving away our information to companies far more than we realize. Sixty-one percent of us have no idea how many companies have the keys to our Facebook profiles via app permissions and Facebook logins.

Don’t even get us started on passwords.

Here’s a snapshot courtesy of the analysts at NextAdvisor: