Cirrus by Secria
Cirrus adds post-quantum encryption to Gmail and Outlook. Your team sends in three clicks. Recipients open it straight from their inbox without needing an account.
No migration
Nobody changes address, provider, or habits. Cirrus lives inside the tools your team already opens every morning, and setting it up takes minutes.
Compose, encrypt, and send without leaving Gmail. Sent mail stays in your Sent folder, where it belongs.
The same protection inside Outlook, in the compose window your team already knows.
How it works
Your team writes the message and attaches files, right in their inbox.
The message is encrypted on their machine before it leaves, to the new NIST post-quantum standard.
They get a secure link and a one-time code, and read the message in their browser. No account, no software, no signup.
Built for business mail
Client-side encryption, a full audit trail, message expiry and revocation. The controls compliance work asks for, whatever rules your industry answers to. Tell us what you need to meet.
Set expiry dates and view limits. Revoke a message that should not have gone out. Every send and open lands in the audit log.
Messages are sealed before they reach us and we never hold the key. What your team sends stays between them and the recipient.
Encrypted traffic is being copied and stored today, to be opened once computers can break it. Contracts, records, and client mail have long lives. Cirrus seals them now, so there is nothing to come back for.
Tell us a little about your company and what you need to protect. We reply within 24 hours and walk you through Cirrus in Gmail or Outlook, whichever your team uses.
Message received. We reply within 24 hours.
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