Anjuna Seaglass vs CYSEC ARCA Trusted OS for Clouds: Side-by-Side Comparison (2026)

Short answer

Enterprise and mid-market teams protecting sensitive workloads from insider threats and memory-based attacks will find Anjuna Seaglass valuable because it encrypts data in-use via hardware enclaves, not just at rest or in transit. The no-code wrapping approach means you can move existing containerized apps into Confidential Containers without rewriting application code, and multi-cloud deployment across AWS, Azure, and GCP reduces vendor lock-in. This is not for teams whose primary concern is preventing initial compromise or lateral movement; Seaglass assumes the container already runs and focuses on what happens inside it, leaving your CNAPP and network detection work largely unchanged. Enterprise and mid-market teams running sensitive workloads on public clouds need CYSEC ARCA Trusted OS for Clouds if isolation from cloud provider administrators is a hard requirement, not a nice-to-have. Hardware root of trust attestation at each VM boot combined with AMD SEV support on EPYC instances means your encryption keys stay genuinely inaccessible to CSP staff, which addresses PR.DS and PR.PS gaps that standard hardening cannot close. This is not for buyers seeking a general-purpose container security layer; ARCA is purpose-built for confidential computing scenarios where the threat model includes your cloud vendor itself.