Facebook quietly introduced new functionality onto its site last week that could have some worried about their online privacy.
The social network is rolling out the ability to see if and when someone has seen a post on a Facebook group.
For now you can still snoop on the profiles and pictures of your ex-partners (their privacy settings permitting) to keep a track – without them knowing – of how miserable their life has become since they split up with you.
But if you are in the same Facebook group (perhaps related to a school, club or joint interest), you can see both whether someone has seen a particular post and at what time they saw it.
So, although you can configure Facebook to not tell your online friends when you are online (effectively hiding from their instant messaging chats, and maintaining a pretence that you have a social life rather than being…
Read more in my article on the Naked Security website.