encrypts user files and demands that a ransom be paid in Bitcoin to decrypt those files.(Citation: LogRhythm WannaCry)(Citation: FireEye WannaCry 2017)
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: encrypts user files and demands that a ransom be paid in Bitcoin to decrypt those files.(Citation: LogRhythm WannaCry)(Citation: FireEye WannaCry 2017) ### Response: T1486.