A library can’t leak data it never receives — or become a sub-processor your auditors must vet.
The hardest part of adopting a security startup is procurement: a regulated institution must onboard a new vendor that holds or sees its data, triggering vendor risk, sub-processor disclosure, data-residency review, and a new external attack surface. B5 Secure sidesteps that paradox entirely — it ships as libraries that run inside your own cloud.
The startup-security-vendor paradox — and how B5 avoids it.
A regulated buyer evaluating a young security SaaS must onboard a new vendor that holds or sees their data, triggering a vendor risk assessment, sub-processor disclosure, data-residency review, a new SOC 2 dependency, and a new external attack surface. This is the single biggest friction in enterprise security sales. Because B5 ships as libraries that compile into your app and run inside your own cloud, it collapses that friction: no data leaves the boundary, no new live attack surface, and your existing compliance perimeter absorbs B5.
Onboard a data-processing cloud
- A new vendor that holds or sees your data
- Sub-processor disclosure and data-residency review
- A new external attack surface to assess
- A new SOC 2 dependency standing alongside yours
Inherit your own perimeter
- No customer data leaves your boundary
- No sub-processor, no cross-border transfer analysis
- No B5-operated endpoint for an attacker to reach
- B5 inherits your existing SOC 2 / PCI / FedRAMP boundary
B5 certifies a software supply chain, not a data cloud.
Because B5 holds no customer data, its Trust Center attests to a shorter, more credible list than a SaaS competitor’s — turning the compliance conversation from a gate into a close.
Secure SDLC, NIST SSDF aligned
A documented secure development lifecycle aligned to NIST SSDF, with the controls a regulated reviewer expects to see.
SLSA Level 3+ provenance
Build provenance that proves what was built, from what sources, by which pipeline — tamper-evident from commit to artifact.
Signed packages & SBOM
NuGet package signing and a Software Bill of Materials per release, with reproducible builds and dependency, secret, and container scanning.
FIPS-validated cryptography
FIPS 140-3-validated cryptographic modules and an HSM-integration story for the most sensitive operations.
Crypto-agility / post-quantum
A documented migration posture toward ML-KEM and ML-DSA, so the move to post-quantum is a configuration, not a rebuild.
No customer data, documented
Clear attestation that B5 processes no customer data in any B5-operated system — the line that shortens every security review.
Where the library advantage closes deals.
A shorter questionnaire
No data-processing means most sub-processor and residency questions simply do not apply.
Faster to yes
B5 inherits the bank’s certified boundary instead of standing a new one alongside it.
A feature, not a gap
Certifying a supply chain is a smaller, cleaner surface than certifying a data cloud — and B5 runs inside your certified boundary.
Honest about what is validated and what is on the roadmap.
A smaller, well-scoped surface — stated plainly.
B5’s FIPS 140-3 Level 3 HSM integration is validated, and SOC 2 Type I/II, ISO 27001/42001, PCI DSS, and CSA STAR are progressing on a published roadmap. Because B5 certifies a software supply chain rather than a data-processing cloud, that in-progress status is a smaller surface, not a weakness — and B5 runs inside the boundary your auditors have already certified. See the Trust Center for current attestation status.
The simplest Trust Center in the category — by design.
Walk your security and compliance team through the library-not-platform model. The shorter the surface, the faster the close.