This article explains how to prevent strangers from following you on X (formerly Twitter) by setting your account to private instead of public. It includes information on removing existing followers or blocking a follower, along with reasons why strangers might be following you.

When you sign up for X, your account is public by default; anyone can follow you, view your feed, and interact with you. To prevent strangers from following you, set your account to private. That way, when new people want to follow you, you’ll receive a request, and you can approve or deny the request. Here’s how to set your account to private.

Select the Settings icon (gear).

Select Privacy and Security.