<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:  Provide reasons why regular password changes are important for computer security. Context: Regular password changes are important for computer security because they help prevent unauthorized access and strengthen security measures. Answer: [/INST]It helps prevent unauthorized access and strengthens security measures.</s>