I'm trying to figure out what's "Open Source code" actually means. Judging from what little is shown at the video, and without watching any of that programme, I

I'm trying to figure out what's "Open Source code" actually means. Judging from what little is shown at the video, and without watching any of that programme, I think the idea here isn't "open source" as in "Free and Open Source software", but more of "code examples freely available on the net", in the same vein of someone copying information about a book from the Internet for school and gets an F with a "No, Lurch and Uncle Fester were not characters in David Copperfield." That is not a jab at open source. I don't know how a virus could be inserted in a code snippet copy/pasted from the web, but I guess that's what the scene refers to.