Keyfactor Raises $1B For AI Trust Infrastructure

Keyfactor said on July 6, 2026 that it secured a $1 billion-plus strategic growth investment led by Summit Partners to expand trust infrastructure for AI and post-quantum enterprise security. The round puts machine identity, certificate automation, cryptographic inventory, and post-quantum readiness closer to the core AI infrastructure budget. Keyfactor and Summit frame the demand around AI-driven identity sprawl, shorter certificate lifespans, tighter regulation, and the need to issue and govern cryptographic identities for machines, workloads, and AI agents. For practitioners, the practical signal is that PKI, certificate rotation, and cryptographic posture management need to be designed into AI systems before agent fleets and service-to-service credentials multiply faster than security teams can govern them.