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SEALSQ announced VaultIC409, a secure element built on its QS7001 platform that is designed to support post-quantum algorithms alongside RSA and ECC. The company plans a TLS 1.3 demonstration in November 2026 and expects engineering samples in Q2 2027; the platform is undergoing Common Criteria EAL5+ certification.
SEALSQ has announced VaultIC409, a secure element built on its QS7001 platform and designed to support post-quantum cryptography alongside RSA and elliptic-curve cryptography in connected devices. The company says the product targets markets served by its VaultIC408 and offers existing customers a route to post-quantum security without redesigning their hardware security foundation; samples are not expected until Q2 2027.
According to SEALSQ, VaultIC409 is designed to support ML-KEM (FIPS 203) for key establishment and ML-DSA (FIPS 204) for digital signatures, as well as RSA and ECC. Its stated features include a hardware Root of Trust, dedicated cryptographic acceleration and a Serial Peripheral Interface (SPI) connection. The company says the accelerator handles heavy cryptographic operations while cryptographic assets remain in a protected hardware environment.
SEALSQ plans to demonstrate the device through a TLS 1.3 application at Electronica, scheduled for November 10–13, 2026. The company expects engineering samples in Q2 2027, for customers and partners to evaluate and begin integration work. The QS7001 platform underlying the product is currently undergoing Common Criteria EAL5+ certification; the announcement does not say that certification has been completed.
The product is intended to address data and processing demands associated with post-quantum algorithms. SEALSQ says larger keys, signatures and certificates can require more data exchange than many traditional cryptographic mechanisms, and points to SPI connectivity as an interface for those exchanges. These are product design claims; the announcement provides no independent performance results or measurements.
A Retrofit Path for Device Security
VaultIC409 matters to manufacturers because changing cryptographic protections can affect device hardware, software and product lifecycles. If it works as described, support for both post-quantum and established algorithms could let companies plan a gradual move toward newer standards while retaining compatibility with existing cryptographic systems. SEALSQ says customers can do this without redesigning their hardware security foundation, though it has not provided customer evaluations or integration results to verify how broadly that promise applies.
The announcement also reflects a practical challenge for connected-device makers: post-quantum cryptography is not only a software choice. Larger cryptographic data and additional computation can place demands on embedded devices and their connections. A secure element with hardware acceleration and SPI connectivity is intended to address some of those constraints, but actual performance, power use, costs and suitability for particular devices remain unreported.
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From Classical to Post-Quantum Support
Many widely used systems rely on RSA or ECC, algorithms that SEALSQ says face potential risk from future quantum computers. That is a future-facing concern, not a claim that current quantum computers can already break those systems. Post-quantum cryptography refers to cryptographic methods designed to resist attacks from quantum computers; the standards cited in the announcement are ML-KEM, FIPS 203, and ML-DSA, FIPS 204.
SEALSQ presents VaultIC409 as an extension of its VaultIC secure element family and says it targets the same established markets as VaultIC408. The device is built on QS7001, which is still in the Common Criteria EAL5+ certification process. That status is distinct from a completed certification of the announced product, and the company’s release does not describe a final certification date.
“VaultIC409 gives our customers a direct path to post-quantum security on a certified platform they already know.”
— Carlos Moreira, SEALSQ founder and CEO
hardware security module with cryptographic acceleration
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Certification and Performance Remain Open
The announcement does not provide technical benchmarks for cryptographic speed, power consumption, memory use, cost or device compatibility. It is also unclear which specific VaultIC408-based products can adopt VaultIC409 without other hardware or software changes, and whether the proposed migration path has been tested by customers.
SEALSQ describes the QS7001 platform as undergoing Common Criteria EAL5+ certification, but gives no expected completion date. The announcement also does not specify sample quantities, pricing, production timing or when a finished commercial product may be available. The planned trade-show demonstration and future engineering samples do not, by themselves, establish commercial readiness.
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Demo First, Samples in 2027
The next stated milestone is SEALSQ’s planned TLS 1.3 demonstration at Electronica from November 10–13, 2026. That event may provide more detail about how the secure element handles the announced cryptographic functions in an application, although the company has not said whether it will publish test results.
SEALSQ expects engineering samples in Q2 2027 for customer and partner evaluation. Further details to watch for include the status of QS7001 certification, sample availability, measured performance and implementation requirements. Until those are disclosed, VaultIC409’s capabilities and integration benefits remain based on the company’s product announcement.
cryptographic secure chip with SPI interface
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Key Questions
What is SEALSQ’s VaultIC409?
It is a secure element announced by SEALSQ for connected devices, built on the company’s QS7001 platform and designed to support post-quantum and established cryptographic algorithms.
Which cryptographic standards does VaultIC409 support?
SEALSQ says it is designed to support ML-KEM (FIPS 203), ML-DSA (FIPS 204), RSA and ECC. The announcement does not include independent test results.
When will VaultIC409 be available?
SEALSQ expects engineering samples in Q2 2027. It has not announced pricing or a date for general commercial availability.
Is VaultIC409 or its platform already EAL5+ certified?
The company says the underlying QS7001 platform is undergoing Common Criteria EAL5+ certification. The announcement does not state that certification is complete.
Will existing VaultIC408 customers need to redesign their hardware?
SEALSQ says VaultIC409 provides a path to post-quantum security without redesigning the existing hardware security foundation. Specific compatibility requirements and customer integration results have not been disclosed.
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