1 Zero-day vulnerability in software
2 Definition of a term ( origin is not from a dictionary)
3 No clear thesis statement (paragraph 2)
4 But, after all, the first, the second
5 *in class
6 1) Zero-day vulnerability, 2) Network holes, 3) Intelligence agencies & zero-day vulnerabilities 4) The importance of hacking
7 *Revise with a classmate