Few security tips to protect your website from hackers
Most unwarranted entry into any website is not to steal data or to mess with your website but to use the website’s servers as a email relay for spreading spam or to create a temporary web server to serve files of illegal nature. The servers could also be used as a part of a botnet or to get bitcoins. The server could also be hit by ransomware.
Keep the latest software
Whether you are running a server OS or any software, ensure that it is the latest version such as CMS or Forum. Hackers often intrude through security holes present in older versions of software. However you need not worry if you use a managed hosting solution since the hosting company will take care of the issues. Using third party software makes it imperative for you to apply security patches which is often detailed by RSS feed by most vendors such as WordPress, Umbraco and many other CMS. If you are using tools such as Composer, npm, or RubyGems , pay attention to security vulnerabilities detailed on the pack.
Beware of SQL injection
The hacker uses a web form field or URL parameter to encroach and control your database. When anyone uses the standard Transact SQL it leaves behind a breach which can be used by the hacker to insert rogue code into your query which can change tables, obtain information and delete data. Therefore always use parameter queries. All web languages have this feature and it is very simple to use.
Be careful while sending error messages
Reveal only minimal information in error messages to users to prevent leaks of secrets in the servers like API keys or database passwords. Keep the detailed errors in your server logs and reveal to users only the information they need.
Validate on both sides
It is important that validation is done from both the browser and server ends. Failure to ensure deeper validation server side can lead to malicious code or scripting code being inserted into the database which can lead to unwanted results on your website.
Check your passwords
Use strong passwords for the server and website admin area and insist on good password practices from your users. Enforce a password regimen of as a minimum of around eight characters, including an uppercase letter and number will help to protect their information in the long run.
Discourage file uploads
Giving the option of file uploads to users is a big website security risk, even if it’s simply to change their avatar. Anyone can camouflage a malicious code which when executed on your server, completely opens up your website