IonQ to Acquire Zero-Trust Security Firm Elisity in Deal Valued at Up to $1.3 Billion

Oct 12, 2026 · Original article ↗

Summary

IonQ plans to acquire Elisity in an all-stock deal valued at up to $1.3 billion, combining Elisity’s identity-based network access controls with IonQ’s cybersecurity business and post-quantum security efforts.

Key points

The all-stock acquisition is valued at up to $1.3 billion and is expected to close in the fourth quarter of 2026, subject to regulatory approval.
Elisity’s software governs communication among users, devices, workloads and AI agents across networks.
IonQ says the combination will link identity and access controls with its post-quantum cryptography and quantum key distribution work.
Elisity plans to add cryptographic inventory and risk information to its IdentityGraph product to help customers prioritize post-quantum upgrades.
The article highlights the risk of attackers retaining encrypted data for possible future decryption, as well as the need to migrate systems to post-quantum cryptography.
Elisity’s CEO says AI-agent access controls need to account for changing tasks, tools and delegated permissions, applying least privilege at the task level.

Article Details

Event Type: IonQ announced an all-stock agreement to acquire Elisity, a zero-trust network security firm, in a transaction valued at up to $1.3 billion.
Impact: The proposed acquisition would add Elisity’s enterprise access-control capabilities to IonQ’s cybersecurity business and is intended to connect identity data with cryptographic risk decisions, including prioritization of post-quantum security upgrades. The deal is expected to close in the fourth quarter of 2026, subject to regulatory approval.