Auto log out for certain customers front office when back office password is changed

[Designinfo.in]

I want certain customers to automatically be logged out when I change their password from the back office.

 

Present scenario -> back office customer password changed -> page static and customer can still view the product

 

Required scenario -> back office customer password changed -> front office immediate effect -> customer logged out immediatedly

 

basically as soon as i change the back office password the front office customer should be immediately logged out and prevented from viewing anything which requires special access.