Facebook is testing a new feature that notifies users if their account is being impersonated, Digital Spy reports.

The automatic tool identifies suspicious accounts through a name or profile picture. Users will be alerted to potential impersonators and asked to identify whether they are indeed posing as you using your personal details, or if it's someone else.

The alerts are currently live in three quarters of the world, and have been under testing since November 2015.

The anti-harassment measures also serve as part of ongoing efforts to help women in certain parts of the world feel safer while on Facebook.

Facebook's Head of Global Safety Antigone Davis told Mashable: "We heard feedback prior to the roundtables and also at the roundtables that this was a point of concern for women.

"And it's a real point of concern for some women in certain regions of the world where [impersonation] may have certain cultural or social ramifications."

Facebook is also testing a feature for reporting nudity, and a photo check-up tool.

The inappropriate image tool is meant to be more compassionate to those affected by inappropriate photos by allowing users to identify themselves as well as reporting the image.

It will also send links to outside resources such as victim support and legal options.

Additionally, the photo check-up feature is meant to better educate users as to who can see their photos.