<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:  Describe the purpose of encryption in computer security. Context: Encryption scrambles data to make it unreadable to unauthorized users, ensuring that sensitive information remains secure. Answer: [/INST]It scrambles data to make it unreadable to unauthorized users, ensuring that sensitive information remains secure.</s>