Developers should be aware of the most common forms of cross site problems that can weaken an apps security namely CSRF(Cross-Site Request Forgery) and XSS(Cross-Site Scripting) both of which can lead to infiltration or even hijacking of sessions by unauthorized people or programs that are designed to do just that. SQL injection is another way by which malware enters sites to hijack them, injecting code and doing stuff such as obtaining user information for use later. Robust security is key and should be taken seriously.

The internet is a very wide place to move through but that very movement poses serious threat to users and developers alike who aim to secure data from those who aim to use it for no good.