I wrote a question before like this "Hi i just installed Ubuntu and it seems like a nice operating system. I just have some questions about the security. How safe is ubuntu? is there no risk developers make source codes like trojans in the operating system , is it safe to download applications and use them? or are there risks that applications can have functions like a trojan?"
It was closed and said to be duplicate question by please don't call people out by name in questions...it will only end badly... i searched through their questions but did not find any question like my question on them.
Why not give a direct link to that specific question instead?
So for me the question is still like above.