There are two main components to a website or app: server and client. The server side stores code and data and processes operations and requests. The client side is where the web application comes together and is rendered within a browser.
Traditionally, hackers have targeted the server side, employing methods designed to break in and steal assets. Over time, organizations have leveraged origin-focused security products to safeguard data and assets, but cybercriminals are continuously moving to exploit the point of least resistance. Therefore, they have since turned their attention to a different target: the application or web browser that runs on the endpoint or client. Hackers are exploiting client-side weaknesses to steal sensitive and financial customer data for sale on the dark web.