<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 encryption used for? Context: Encryption is used to secure data by converting it into a code that can only be read with a special key. Answer: [/INST]Encryption is used to secure data by converting it into a code that can only be read with a special key.</s>