Today the girl told that climbed one "specific to the online store", and in two hours she Vkontakte wrote the man — Manager of the store offered her advice on browsed her goods.
Find out what products she looked — easy on logs. But as the logs professiionals with its id Vkontakte?
Is it a bug or a feature? :)
UPD: On the website it came from Yandex, Windows authorization Vkontakte OpenAPI like "are You going to allow this site access to Your data" was not.
While I tend to think that this is either a bug of Facebook, or a Trojan/toolbar installed in the browser, or they found a loophole through flash. However in all this believe weak :)