Hiding your date of birth (DOB) on Facebook is a privacy measure that can help protect your personal information from being shared with unwanted parties. Your DOB is a piece of personally identifiable information (PII) that can be used by identity thieves to access your accounts or by marketers to target you with personalized advertising.
There are several reasons why you might want to hide your DOB on Facebook. Perhaps you’re concerned about identity theft, or maybe you just don’t want your friends and family to know your age. Whatever the reason, hiding your DOB is a simple process that can be completed in just a few steps.