They Invented Blockchain.
Now They're Stopping Deepfakes.

SureCircle™ Identity Assurance is their answer to AI impersonation: cryptographic identity verification — one click, 20 seconds, unforgeable proof.

Schedule a Demo

The Next Deepfake Could Cost You
$25.6 Million.

That’s what Arup lost to a single AI impersonation attack. SureCircle™ Identity Assurance delivers cryptographic proof of identity — so your CFO never wires money to a deepfake.

Schedule a Demo

You Can't Trust Your Eyes. You Can't Trust Your Ears. You Can Trust SureMark.

Deepfakes have made impersonation perfect. SureCircle™ Identity Assurance replaces trust with cryptographic certainty — one-click verification for your most targeted individuals.

Schedule a Demo

SureMark - Built by the Co-Inventors of Blockchain

SureMark was developed by Drs. Stuart Haber and W. Scott Stornetta, the scientists whose early work at Bell Communications Research in blockchain now protects over $3 trillion in digital assets.

W. Scott Stornetta

Stuart Haber

Attacks SureCircle™ Stops

Woman on the phone

  • Executive impersonation: Stop deepfake CFOs and CEOs from authorizing fraudulent wire transfers — like the $25.6M Arup attack.

  • IT helpdesk vishing: Block fake "internal support" calls from resetting MFA and credentials — the playbook that breached MGM Resorts.

  • Bank fraud pretexting: Defeat "your bank's fraud department" calls that harvest authorization codes under manufactured urgency.

  • Vendor payment fraud: Catch BEC attacks where "trusted suppliers" reroute wires to attacker-controlled accounts.

Get My SureMark Credential

A SureMark Credential stops AI-driven fraud at the source—protecting every conversation, across every channel.

Verify Any Conversation, Across Any Channel

SureCircle™ protects you, your loved ones, clients, and associates from digital scammers.

From $25 per user, per month

Get my SureMark Credential