Your response should contain at least 3 sentences. The response must contain at least 2 placeholders represented by square brackets, such as [address] and [phone number]. Highlight at least 2 sections in your answer with markdown, i.e. *highlighted section*. Include keywords *privacy* and *security*. In your response, the word *confidential* should appear at least 2 times. Answer the following question: How can I ensure that my personal information is protected online?
user