Question: what should John do? Should he open the file attachment? Should he buy the medicine?
Answer: John should not open the attachment because he do not know who the user is and the file may contain viruses. Also, he should not buy the medicine as he does not know whether it is trustable or not. The medcine may not even exist in the first place, or it might also not cure him at all.
Question: what should John do? Should he open the file attachment? Should he buy the medicine?
Answer: John should not open the attachment because he do not know who the user is and the file may contain viruses. Also, he should not buy the medicine as he does not know whether it is trustable or not. The medcine may not even exist in the first place, or it might also not cure him at all.