I set up Trend Micro's Password Mgr with its Master Password, but then to test it I went to a site that required my old PW and I was still able to sign in with my old PW. So, why bother with your Master PW program?
Welcome to TM Home users Community, a public site where voluntry to help each-other , also there are TM Employees that can give answers, that is only at working hours. I am just a volunteer! Normal i think if you did not change your password for that site!!!
The Password Manager program can be used to save and encrypt passcards/login credentials (composed of the website, username, and password). You can secure these passcards by setting up a Master Password that's why the Master Password does not actually affect the login credentials you managed to save on Password Manager Program but it helps you protect those information.
The Password Manager program can be installed across all supported devices and the information will be saved accordingly per Trend Micro account.
Feel free to check out the link below for more details: