It is common for one-time codes to be sent via out-of-band communications (email, SMS).
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: It is common for one-time codes to be sent via out-of-band communications (email, SMS). ### Response: T1111.