I got an email from Google firstname.lastname@example.org saying the following about the gmail address of an acquaintance that is supposedly connected to a non-gmail account I use:
> The password for your Google Account - &&&&&&(changed)&&&&&@gmail.com > - was recently changed. If you made this change, you don't need to do anything more. > > If you didn't change your password, your account might have been > hijacked. To get back into your account, you'll need to reset your > password. > > Sincerely, The Google Accounts team This email can't receive replies. > For more information, visit the Google Accounts Help Center. If > &&&&&&(changed)&&&&&@gmail.com isn't your Google Account, click here to > disconnect your email address from this account.
As you can see, gmail is giving me the option of disconnecting my email from his gmail account, but before I do and without asking him I am wondering what earthly reason he could have for giving my address to gmail as his own.
Is this some kind of technique to build history to eventually hack into my gmail? I don't see how.