What are bots? Simply put, internet bots are software applications that are designed to automate many tedious and mundane tasks online. Malicious bots interact with pages containing log-in forms and attempt to gain access to sites by trying out the different username and password combinations.
Your website is the recipient of such attacks because it is online. It has nothing to do with how popular or not your website is.
Need help with protecting your site,let me know.I'd be happy to assist.
To protect your site from being hacked, enforce strong password policies.