SemaFore support

How can we help?

Tell us what is happening, who is affected, and how urgently you need help. We will confirm by email and route your request to the right SemaFore support queue.

Please do not include passwords, recovery keys, private keys, seed phrases, or message content. Security vulnerabilities should use the Attomus disclosure policy.

Product support

Use the form for app, portal, billing, access, account, and service-impacting issues.

Sales or procurement

For deployment, pricing, procurement, or security-assurance discussions, request a briefing.

Request briefing →

Security disclosure

Report vulnerabilities through the Attomus Vulnerability Disclosure Policy, not ordinary support.

Disclosure policy →