Final answer:
Password policies with complexity requirements enhance security by making passwords harder to guess or crack. It is discouraged to write them down due to risk of theft or loss, but if necessary, they should be kept securely. Regular password changes help mitigate risks from old compromised passwords.
Step-by-step explanation:
The requirements for a password to have a capital letter and a symbol are part of what's known as a password policy. This policy is enforced to enhance the security of your account. Capital letters and symbols create a more complex password, which makes it harder for attackers to guess or crack using automated tools.
Writing down passwords is generally discouraged because it creates a physical copy that can be lost, stolen, or easily seen by others around you. However, if you must write it down, it should be kept in a secure, private location, not somewhere easily accessible like under a keyboard or on a monitor.
Passwords are changed regularly to mitigate the risks associated with password aging, like unauthorized access from someone who may have discovered an old password. While it may seem like a waste of time, it is a vital practice to protect your data and personal information from cyber threats.