In July 2016, the company launched an iOS app that offers end-to-end encryption and full integration with the webmail settings.
[4][5][6] Additional security features include hidden IP addresses in e-mail headers, two-step verification[7] and HIPAA-compliant encryption.
Developments in November 2007 led to doubts amongst security-conscious users about Hushmail's security – specifically, concern over a backdoor.
Hushmail privacy policy states that it logs IP addresses in order "to analyze market trends, gather broad demographic information, and prevent abuse of our services.
"[15] Hush Communications, the company that provides Hushmail, states that it will not release any user data without a court order from the Supreme Court of British Columbia, Canada and that other countries seeking access to user data must apply to the government of Canada via an applicable Mutual Legal Assistance Treaty.