Answer: Matt is a victim of Cybercrime.
Explanation:
What is Cybercrime?
Cybercrime is a criminal activity that is committed on the online services such computer , network device or network.
Some cybercrime activities are committed so that cybercriminals can make cash from these activities but some are done to damage your computer or network by introducing viruses or malware or to illegally misuse your personal information.
The most common effect is financially when cybercriminals want to make money through using fraud emails for identity theft or to have your bank information.
Once your personal information is online you have no control on it and how it can be used because these cybercriminals are usually the most technically brilliant individuals.
Matt has suffered the effect where the cybercriminals want to make profit from identity theft and now they will probably use his personal information to get access to his money.