Tutanota is a provider of secure email services. The company is based in Germany, a country that has very strict laws on user privacy protection and bulk monitoring. Even when Germany introduced data retention last year, email was explicitly exempted from this law to protect people’s right to privacy.
An article at https://tutanota.com/blog/posts/yahoo says:
“It is still unbelievable to us that Yahoo gave access to all their email accounts to US authorities. This recent publication of years and years of online surveillance shows again how easy it is to monitor everybody – when the data is not being encrypted. This is why Tutanota encrypts all mailboxes by default.
“We believe in our right to privacy.
“We believe that the right to privacy is one of our fundamental Human Rights. For that matter we have build a new email service that integrates encryption into its system so that no one – not even our administrators – can access your private communication. On top of this we have a transparency report that is true to the facts – unlike Yahoo’s transparency report.”
The article also states:
“We recommend everyone to switch immediately to an encrypted mailbox. This is the only way you can be sure that no one is scanning your emails on the server.”
You can read more at https://tutanota.com/blog/posts/yahoo.