Sharing your information online, such as birthdate, cellphone number, and address can put you at a risk of harassment, stalking, or identity theft. Hackers can use such particulars for popular security questions to financial accounts. They may borrow money under your name and easily damage your credit rating. Similar information can give hackers a chance to fool you into revealing sensitive information. I always advise my clients to be careful about what they share on social media, beginning from their profiles.