Virtru secures e-mail and attachments with end-to-end encryption making it easy to send secure e-mail from the clients and services you already use by adding new features to Gmail, Yahoo! Mail, and outlook.com like message revoke, disable forwarding, and message expiration. Seamlessly integrated with major e-mail services as well as e-mail clients such as Apple Mail, Microsoft Outlook, Android, and iOS Virtru layers strong, end-to-end security atop e-mail allowing end-users to send securely without the use of difficult to install encryption software. Virtru make secure e-mail accessible to all end-users. Virtru is based on the secured Trusted Document Format, a format used to secure sensitive information and give message senders the ability to control messages even after they have been sent.