I remember lcamtuf mentioning very similar concept ca. 2003. In his version you would partition secret data and send it out to non existing email addresses, ju

I remember lcamtuf mentioning very similar concept ca. 2003. In his version you would partition secret data and send it out to non existing email addresses, just to get them bounced back within a couple of days. If you want to get your secrets back together you would simply start gathering appropriate parts (you need to keep track of all the chunks somewhere), otherwise you'd simply send them to another non existing email address.