DuoCircle
Security and trust center evidence
DuoCircle: Enterprise Email Security Solutions Founded in 2014 in San Diego, California, DuoCircle specializes in enterprise email
Summary
DuoCircle has 1 registry-verified row, and 1 expired in the CertReports index, last verified 2 Nov 2026. The strongest row is CSA STAR: STAR Level 1 self-assessment (CAIQ). This page is independent of the vendor’s own trust centre: dates, sources and caveats come from CertReports captures.
Reviewer brief
As of 2 Nov 2026, CertReports holds 1 registry-verified row and 1 expired row for DuoCircle, drawn from the CSA STAR registry and the Data Privacy Framework list. DuoCircle is listed in the CSA STAR registry for CSA STAR (STAR Level 1 self-assessment (CAIQ)), dated 6 May 2025. DuoCircle previously appeared with EU-US Data Privacy Framework evidence, but the listing is no longer active and CertReports found no renewal as of 2 Nov 2026. No public evidence was found for SOC 2, ISO/IEC 27001, HIPAA and GDPR as of 2 Nov 2026; that is a gap in the public record, not a finding of non-coverage, and the vendor can supply it under NDA.
- CSA STAR: STAR Level 1 self-assessment (CAIQ), verified as of 26 Oct 2026
- EU-US Data Privacy Framework: Inactive, expired as of 2 Nov 2026
Facts only, each dated; nothing here is inferred, scored or advised.
Among security vendors
1verified rows
Category median 1, across 172 indexed security vendors. DuoCircle has more verified rows than 42 percent of them.
email encryptionemail securityphishing protectionspam filtering
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Legal artefacts
No DPA, BAA or subprocessor list has been captured from a public page yet. Registry rows above do not depend on this.
Subprocessors
No subprocessor list captured yet.
Change history
- 18 Sep 2026First indexed by CertReports2 evidence rows across 2 frameworks entered the index.
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Evidence against regulations
All regulations for DuoCircleHow much of each regulation’s vendor requirements DuoCircle’s public evidence reaches.
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