what are the possible ways in which a website can be hacked? and what will hackers do?

i want to know so i can keep my website safe? ANSWER TO THE ABOVE QUESTION We all know that there are many hackers watching every moves of computer users around the world. They can even destroy any website once they penetrated it. Some of the most common ways for a website to be hacked are through Password Cracking, Simple SQL Injection Hack, Brute Force Attack for Servers, Denial of Service, and Password Cracking. Other ways to attack a website are PHP Remote File Includes, Cross Site Scripting, Cross Site Request Forgeries, and Insecure Communications.