# Atsign > Publicly sourced profile assembled by Optimly, in the Optimly AI Brand Index. Last refreshed 2026-10-04. - **Business Profile:** https://optimly.ai/brand/atsign - **Dataset:** https://optimly.ai/brand/atsign.json - **Markdown:** https://optimly.ai/brand/atsign/llms.txt - **Official website:** https://atsign.com - **Slug:** atsign - **Categories:** cybersecurity ## Overview - **Tagline:** Connect everything. Expose nothing. Offers zero open inbound ports, non-custodial cryptographic foundation with post-quantum readiness, and makes identity the security boundary, eliminating infrastructure exposure by design. Source: Brand's website (https://atsign.com) · 2026-10-04 - **Description:** Atsign provides an identity and secure networking foundation to connect applications, devices, systems, and AI agents across any network—without open inbound ports or complex infrastructure rework, focusing on a 'zero exposure' architecture built on cryptographic identity. Source: Brand's website (https://atsign.com) · 2026-10-04 ## Offerings - **Core capabilities:** - Atsign Platform - AI Architect (for building secure-by-design applications) - NoPorts (for protecting and accessing existing systems) Source: Brand's website (https://atsign.com) · 2026-10-04 - **Pricing:** Not specified Source: Brand's website (https://atsign.com) · 2026-10-04 ## Audience - **Target industry:** Enterprises building verifiable AI agent systems, modernizing product-to-cloud networks, remote operations access for internal servers and databases. Also, Architects, Engineers, CISOs, and Executives looking to reduce security overhead. Source: Brand's website (https://atsign.com) · 2026-10-04 Page last updated 2026-10-17.