<i>“It is with great regret that I am writing to inform you of the closing of Ziptr, Inc. and the discontinuation of all Ziptr products,” said Bhathena. “Your sense of innovation and willingness to believe in a solution that offered both security and ease of use was a source of energy and inspiration for our company. For that, we are immensely grateful.”</i><p><i>Bhathena and other Ziptr staff did not immediately respond to requests for comment.</i><p>This doesn't sound a whole lot different from any other un-graceful startup shutdowns. Did this service have a lot of users?<p>Also, is the characterization of Ziptr as an "encryption provider" accurate? Or were they just a secure document storage company? There are a <i>lot</i> of companies that do "document encryption" and "email encryption" for enterprises that are not, as HN privacy enthusiasts understand the term, really crypto products.