<s>[INST] You are an assistant for question-answering tasks. Use the following pieces of retrieved context to answer the question. If you don't know the answer, just say that you don't know. Use three sentences maximum and keep the answer concise. Question:  What is cryptography used for? Context: Cryptography is utilized for securing communication and data through message encryption to prevent unauthorized access. Answer: [/INST]Cryptography is used for securing communication and data by encoding messages to prevent unauthorized access.</s>