You are worried about your password being stolen, but you have had this password for a long time. It is a good password and hard to remember. You still want to use some form of this password in your new password. What should you do?

A. Shorten the password by removing characters on the end
B. change some of the characters to upper case
C. make some of the characters to upper case
D. add random characters to the end to make it longer

B. Change some of the characters to upper case

By changing some of the characters to upper case, you can create a new variation of your old password that is still familiar to you but more secure. This will make it harder for hackers to guess your password even if they have some knowledge of your old password. Additionally, you can also consider adding numbers or special characters to further enhance the security of your new password.