Went to verizon.com this morning. Page came up with my name logged on saying my last logon was 9/16/2015 at 7.57 am. That may well be the last time I logged on however I DID NOT check keep me signed on on this machine so I don't understand why it still shows me as logged on and in fact is somewhat of a security issue..
This actually has been happening for weeks and is somwhat annoying as when you attempt to sign on to the forums the logon fails. Then you have to return to the main page and logout and logon again before you can get the forum logon to work, guess that another nuance of the strange way Verizon has implemented SSO.