what are the advantages and disadvantages of open source code with respect to security?, homework help

hello

I need to write two things ::
1- what are the advantages and disadvantages of open source code with
respect to security? ( one Paragraph)
2- A reply for this post

“Open
Source vs Closed source applications has always been a great topic of
debate amongst firm believers of freeware vs proprietary apps. I can
see both sides of the argument regarding security as being the heat of
debate. On the open source side advantage column. We have great coders
whom has the best intentions of expanding, looking and mitigating
exploits to secure the application at times for free which leaves a lot
of room for growth since there isn’t that much overhead. There’s also
the suggestion of suggesting a better and efficient coding.

On the other hand open source that peruse the codes for free can
sometimes have a less enthused attitude toward about the coding since
they’re not paid like 3rd party coders that are hired specifically to
find bugs and exploits. There’s also the argument in this day and age
of handing open source codes to enemies regarding our own
flight applications, weapon programs etc. I think those should be kept
secret…clearly. I don’t think there should be a specific
black&white stance on the open source/closed source application
argument, unless it involves national security.”

thank you