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SEALSQ has announced VaultIC409, a secure element built on its QS7001 platform and 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 the second quarter of 2027; the QS7001 platform is undergoing Common Criteria EAL5+ certification.
SEALSQ has announced VaultIC409, a secure element built on its QS7001 platform that is designed to support post-quantum cryptography alongside RSA and elliptic-curve cryptography. The company says the device targets markets served by its VaultIC408 and could give existing customers a route to adopt new cryptographic standards without redesigning their hardware security architecture.
SEALSQ says VaultIC409 is designed to support ML-KEM (FIPS 203) for key establishment and ML-DSA (FIPS 204) for digital signatures, as well as established RSA and ECC algorithms. The product combines a hardware-based Root of Trust, cryptographic agility, a dedicated accelerator for intensive cryptographic operations and a Serial Peripheral Interface (SPI) connection to a host device.
The company says the secure element is intended to keep sensitive cryptographic assets in a protected hardware environment while supporting device identity, key management, secure communications and trust services at runtime. SEALSQ also says SPI can accommodate the larger keys, signatures and certificates associated with some post-quantum cryptography systems. These are product-design claims; the announcement does not provide independent performance results or implementation benchmarks.
SEALSQ plans to demonstrate VaultIC409 through a TLS 1.3 application at Electronica, scheduled for November 10–13, 2026, at its booth in Hall C6, stand 670. The company expects engineering samples in Q2 2027, for customer and partner evaluation. SEALSQ says the underlying QS7001 platform is undergoing Common Criteria EAL5+ certification; the announcement does not say that certification has been completed or that VaultIC409 itself is certified.
A Route to PQC Without a Hardware Redesign
Embedded products often remain in service for years, while their security requirements can change during their operating life. A secure element that can support both established algorithms and post-quantum standards could give manufacturers a way to plan for cryptographic changes without replacing an existing hardware security foundation. SEALSQ is positioning VaultIC409 for industrial, smart-energy and IoT devices, where hardware revisions can require substantial design and testing work.
Post-quantum algorithms can require larger cryptographic data exchanges and different computing resources than older approaches. SEALSQ’s emphasis on hardware acceleration and SPI addresses those engineering needs in its product design, but the announcement does not establish how the device performs in specific products, what integration work customers will need, or how it compares with alternatives. The practical significance will depend on testing and customer evaluation once samples are available.
secure element for post-quantum cryptography
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The VaultIC Family and PQC Standards
VaultIC409 extends SEALSQ’s existing secure-element portfolio and is aimed at the same established markets as VaultIC408. The company describes the new product as a way to add post-quantum support while retaining an existing hardware security architecture. That does not necessarily mean every product using VaultIC408 can be upgraded directly: the announcement gives no detailed compatibility or migration specifications.
The announced algorithms are part of standards published by the U.S. National Institute of Standards and Technology: FIPS 203 specifies ML-KEM, a key-encapsulation mechanism, while FIPS 204 specifies ML-DSA, a digital-signature standard. SEALSQ says VaultIC409 will support these standards alongside RSA and ECC, allowing for mixed or hybrid cryptographic use. Its platform’s Common Criteria EAL5+ certification process is ongoing, according to the company, rather than confirmed as complete.
“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 RSA ECC support
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Certification, Performance and Compatibility
Several details remain open. SEALSQ has not provided performance figures, power-consumption data, pricing, production-volume timing or a full technical specification in the announcement. It is also unclear which existing customer designs can adopt VaultIC409 without changes, and whether the product will require software or firmware updates for integration.
The company says the QS7001 platform is undergoing Common Criteria EAL5+ certification, but gives no completion date. The announcement also does not detail the scope of that evaluation or establish that VaultIC409 has received a separate certification. The planned trade-show demonstration and future sample availability have been stated by SEALSQ; they are not evidence that the product is already available for production use.
cryptographic secure element for IoT devices
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Demo First, Samples in 2027
The next public milestone is SEALSQ’s planned TLS 1.3 demonstration at Electronica, running November 10–13, 2026. That demonstration may show how the company intends VaultIC409 to work in a connected-device security application, though the announcement does not specify which post-quantum algorithms or performance measures will be shown.
SEALSQ expects engineering samples in the second quarter of 2027, when customers and partners can begin evaluating the device and integration requirements. Updates on the QS7001 certification process, product specifications and sample schedule will help clarify how soon manufacturers could use VaultIC409 in commercial designs.
post-quantum cryptography hardware
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Key Questions
What is SEALSQ’s VaultIC409?
It is a secure element built on SEALSQ’s QS7001 platform and designed for security functions in connected devices, including protected key management and device identity.
Which cryptographic algorithms is it designed to support?
SEALSQ says VaultIC409 is designed to support ML-KEM (FIPS 203) and ML-DSA (FIPS 204), as well as RSA and ECC. The announcement does not include independent test results.
Does VaultIC409 have Common Criteria EAL5+ certification?
Not according to the announcement. SEALSQ says the QS7001 platform is undergoing the Common Criteria EAL5+ certification process; it does not say that the process is complete.
When will VaultIC409 be available to evaluate?
SEALSQ expects engineering samples in Q2 2027. The company has not announced a commercial release date or pricing.
When will SEALSQ demonstrate the product?
The company plans a demonstration using a TLS 1.3 application at Electronica from November 10 to 13, 2026, in Hall C6, stand 670.
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