What term is commonly used to refer to someone like Vince who illegally infiltrates computer systems?

The term "hacker" is commonly used to refer to individuals who gain unauthorized access to computer systems. In the context of the question, Vince illegally infiltrates computer systems, which aligns with the general definition of a hacker, particularly in the negative sense of the term, often associated with malicious intent or criminal activity.

While "cybercriminal" can also accurately describe someone involved in illegal online activities, the term hacker is more specific to the act of breaking into computer systems regardless of the motivation behind it. Moreover, "scammer" typically refers to someone involved in fraudulent schemes to deceive people, and "phisher" refers specifically to those who attempt to acquire sensitive information by pretending to be a trustworthy entity, often through emails or website impersonation. Therefore, in the context of the question, hacker is the most appropriate term for someone like Vince who engages in illegal computer system infiltration.