I've read on New Scientist magazine that in 80% of all cases when people in a relationship share a place where they live one of the spouses knows the other's password, thus making the question I am addressing in this post a real concern.
On some other site, I've read that on average any given person will have about four passwords which they will tend to use on any given site. Over the years I have personally become part of more or less 40 sites where I am registered (social networks, shopping, mobile phone and Internet subscriptions, banking and bills, Google services, etc...).
Now, suppose someone breaks up (perhaps for good), or goes into a divorce, or any other uncomfortable situation where the other person may be able to enter into your accounts and read stuff without you knowing about it, or even worse, carry out modifications, deletions, password changes (or even account deletions!) (which could happen at just about any moment; and who wants lawyers!!!).
Nasty stuff! So, what I would like to ask, is, is there an online web service somewhere, or perhaps an account manager in the cloud (or on your mobile device with cloud backing), that will allow you to bulk-change all passwords you are using everywhere?
Ideally, you should be able to specify all your accounts, with some tracking system. Once all have been added, and each of the four passwords assigned to each, any time something happens you bulk-modify all passwords in one step (via a master password used to access the cloud service).
What other solution could this problem have. Keeping secrets from the other spouse is impractical and I would even say impossible in most cases, and the same goes for passwords. Is what I am describing possible and has something along these lines already implemented?
Or is there perhaps something even better to handle this problem which I have not thought about?
Thank you for sharing your solutions to this omnipresent and vast-reaching problem.