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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 to offer engineering samples in Q2 2027; certification of the underlying platform is still in progress.
SEALSQ has announced VaultIC409, a secure element built on its QS7001 platform to support post-quantum cryptography in connected devices while allowing customers to retain their existing hardware security architecture, the company said. The announcement matters to manufacturers preparing products for future cryptographic requirements, though samples are not expected until Q2 2027 and the platform’s certification remains underway.
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 elliptic-curve cryptography (ECC). The company describes this mix as a way for manufacturers to use classical and post-quantum mechanisms during a period when products and systems may need to support both.
The device combines a hardware Root of Trust, dedicated cryptographic acceleration and a Serial Peripheral Interface (SPI) connection. SEALSQ says the accelerator will handle computationally demanding cryptographic operations and that SPI is intended to accommodate larger exchanges of cryptographic data, including the keys, signatures and certificates associated with post-quantum algorithms. These are product-design descriptions from the company, not published independent performance results.
SEALSQ plans to demonstrate VaultIC409 through a TLS 1.3 application at Electronica, scheduled for November 10–13, 2026. The company expects engineering samples in Q2 2027 for customer and partner evaluation. The QS7001 platform on which VaultIC409 is built is currently undergoing Common Criteria EAL5+ certification, according to the announcement.
A Bridge to Post-Quantum Devices
Manufacturers of connected products often need to maintain security across long product lifetimes. A secure element that can support both classical and post-quantum algorithms could give them a way to plan for cryptographic changes without replacing an entire hardware security design, if the device meets their technical and certification needs. SEALSQ says VaultIC409 targets the same markets as its VaultIC408 product and is intended to provide existing customers a route to PQC without redesigning their security foundation.
The announcement also highlights practical constraints beyond selecting a new algorithm. Post-quantum cryptography can involve larger data exchanges and heavier computation, which can affect embedded devices with limited resources. SEALSQ’s stated focus on acceleration and SPI addresses those engineering considerations. The announcement does not, however, provide benchmark figures, power-consumption data, or independent evidence of performance in customer products.
For readers, the immediate development is a product announcement rather than a release available for broad deployment. The planned demonstration and later sample window offer milestones for assessing whether the design can meet manufacturers’ requirements. The stated certification process is also relevant: the company says it is underway, not complete.
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VaultIC408 and the QS7001 Platform
VaultIC409 extends SEALSQ’s VaultIC secure-element portfolio and is based on the QS7001 platform. The company positions it for smart energy, industrial and Internet of Things devices, where hardware-based identity, key protection and secure communications can be part of a product’s security architecture. It says customers using the VaultIC408 market segment could adopt the new device without redesigning their existing hardware security foundation; the practical scope of compatibility will depend on individual designs.
The product is intended to accommodate the move toward standardized post-quantum methods while retaining RSA and ECC support for existing systems or hybrid approaches. The named algorithms are ML-KEM and ML-DSA, standards published as FIPS 203 and FIPS 204. SEALSQ’s announcement frames the offering as preparation for future quantum-related risks and changing security requirements, rather than claiming that current quantum computers can break these algorithms or that every connected device faces the same immediate threat.
“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 for IoT devices
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Certification and Performance Still Pending
The announcement does not provide independent performance measurements, detailed power or memory figures, pricing, or a final commercial release date. It is also not yet clear which existing customer designs will be compatible without changes, or what integration work each manufacturer would need to undertake. The company’s claim that customers can avoid redesigning their hardware security foundation should not be taken as a guarantee of drop-in compatibility for all products.
SEALSQ says the QS7001 platform is undergoing Common Criteria EAL5+ certification; it has not announced completion. The company has also not reported customer deployments or evaluation results for VaultIC409. Its plans for a trade-show demonstration and Q2 2027 engineering samples remain forward-looking targets stated in the announcement.
cryptographic secure element with acceleration
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Electronica Demo and Sample Evaluations
SEALSQ says it plans to show VaultIC409 running a TLS 1.3 application at Electronica from November 10–13, 2026, at its booth in Hall C6, stand 670. That demonstration is the next stated opportunity to see the product’s proposed use in a secure-communications scenario; it will not by itself establish performance across other devices or applications.
The next product milestone is the company’s planned release of engineering samples in Q2 2027, intended for customer and partner evaluation and integration work. Manufacturers will be able to assess the device against their own requirements as samples become available. SEALSQ has not provided a separate date for completion of the QS7001 certification process or a broader commercial availability schedule.
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Key Questions
What is SEALSQ’s VaultIC409?
VaultIC409 is a secure element based on SEALSQ’s QS7001 platform. The company says it is designed to support post-quantum and established cryptographic algorithms in connected devices.
Which cryptographic algorithms does it support?
SEALSQ says the device is designed to support ML-KEM (FIPS 203), ML-DSA (FIPS 204), RSA and ECC. The announcement does not include independent test results for those implementations.
When will VaultIC409 be available to evaluate?
SEALSQ expects to make engineering samples available in Q2 2027. It has not announced a broader commercial release date.
Has the platform completed EAL5+ certification?
No completion was reported. SEALSQ says the QS7001 platform is undergoing Common Criteria EAL5+ certification.
When will SEALSQ demonstrate the device?
The company plans to demonstrate VaultIC409 through a TLS 1.3 application at Electronica, November 10–13, 2026, at Hall C6, stand 670.
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