Adversaries may attempt to get a listing of valid accounts, usernames, or email addresses on a system or within a compromised environment.
Below is an instruction that describes a task, paired with an input that provides further context. Write a response that appropriately completes the request. ### Instruction: List the MITRE techniques contained in the text. ### Input: Adversaries may attempt to get a listing of valid accounts, usernames, or email addresses on a system or within a compromised environment. ### Response: T1087.