Succinct Labs contributed the following description of SP1 Helios:

SP1 Helios proves the verification of the light client sync protocol, as well as storage proofs of committed state roots.

Zellic conducted a security assessment for Succinct Labs from July 18th to July 29th, 2025. During this engagement, Zellic reviewed SP1 Helios's code for security vulnerabilities, design issues, and general weaknesses in security posture.