since Lavabit - Cloud computing is not safe anymore? - sind Clouds seit Lavabit nicht mehr sicher?

To allow investigations against one single person - a US court forced Lavabit (secure email) to hand out its main private security key.

This allows to read the encrypted mails of the person in concern. But it also allows to read all mails of all customers!!

Technically it has to be like this, that only one main key exists. The fact that investigators then could read all mails of the other 400'000 customers, forced the owner of Lavabit to shutdown the cloud service, as privay could no longer be guaranteed.

It is likely that such a scenario could hit any cloud service user!

source: heise.de