"Vulnerability" is the most significant word that I ever noticed during my starting journey . While seeking information about more , I am here to share my knowledge of the respective subject in simple words.
The inability to resist is a basic concept behind it. While creating a website or any application, the developer might create some loopholes which act as a way by which the application can be spoiled. As in the technological era, we are all aware of the importance of our personal data. Many times we apply to some purpose. But what if the data provided by us is not secure? We have an example of Domino's Pizza where some hacker published the data of a customer on the internet. Consider how sensitive data such as names and payment information can be.
So, on the other hand, some ethical people are trying to minimise those loopholes or bugs and contribute to making the web safe. So bug hunting includes identification of these vulnerabilities and fixing them. Isn't it simple?
may be, or maybe not !
For the finding of the bugs ,it requires lots of skills and knowledge about web servers and their working principles.