"Sometimes, the code you are copying may be so large that you don't have time to understand it completely. If you copy any code this way, there is a risk of mak

"Sometimes, the code you are copying may be so large that you don't have time to understand it completely. If you copy any code this way, there is a risk of making your applications vulnerable and buggy." This used to be a big one for me. About 6 months ago, I saw a presentation on hacking CMS' and how vulnerable they are. One of the main points was to make sure you pen test third party applications before you install and use them. It was a big eye opener for me. I'm no longer just assuming the authors did their due diligence and made sure their apps or plugins are secure before releasing them.