A. gaining unauthorized access to a computer system
B. sending unsolicited bulk email
C. stealing someone else’s personal data
D. using someone else’s original content without permission
Answer:
stealing someone else's personal data
Step-by-step explanation:
Identity theft is when someone steals the personal information of another person like the social security number or the credit card number to commit a fraud. For example, they would steal the data to get a loan or make purchases with the credit card under the person's name. According to this, the answer is that the activity that is a case of identity theft is stealing someone else's personal data.