has obtained free Let's Encrypt SSL certificates for use on their phishing pages.(Citation: Phish Labs Silent Librarian)
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: has obtained free Let's Encrypt SSL certificates for use on their phishing pages.(Citation: Phish Labs Silent Librarian) ### Response: T1588.004.