title: Tips to make my website hack proof
body: <blockquote>
    <p><strong>Possible Duplicates:</strong><br>
    <a href="https://stackoverflow.com/questions/1165040/what-security-issues-should-i-look-out-for-in-php">What security issues should I look out for in PHP</a><br>
    <a href="https://stackoverflow.com/questions/72394/what-should-a-developer-know-before-building-a-public-web-site">What should a developer know before building a public web site?</a>  </p>
  </blockquote>
  
  
  
  <p>The project i was working on is nearly complete and near launching, but I want to  make sure it is hack-proof as mine friend/partner thinks we have some enemies those can hire smart hackers to make the site down.</p>
  
  <p>And if running my site securely under HTTPS, will help , will it be hard on CPU if I have a lot of users ?</p>
  
  <p>Please tell me all security checks that are needed.</p>