How secure is HelloSign?
Security is what we're all about! Our documents are protected behind a firewall and authenticated against the sender's session every time a request for that document is made. The entire site is https. All communications use SSL encryption and all data is stored in a SAS-70 certified data center.
We have a variety of settings that will allow you to customize your documents with security in mind. Your “My Account” page gives you the option of removing the PDF of your signed document from the confirmation email. Although email isn’t the most secure way to send documents, many people find this to be the most convenient option. We’ll leave that decision up to you.