<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 concept of multi-factor authentication in computer security. Context: Multi-factor authentication adds an extra layer of security by requiring users to provide multiple forms of verification, such as a password, security token, or fingerprint scan. Answer: [/INST]Multi-factor authentication requires users to provide multiple forms of verification, such as a password, security token, or fingerprint scan.</s>