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SEALSQ has announced VaultIC409, a secure element based 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 Q2 2027; the platform is undergoing Common Criteria EAL5+ certification.
SEALSQ has announced VaultIC409, a secure element designed to support post-quantum cryptography alongside established algorithms in connected devices. The company says the product is built on its QS7001 platform and targets customers seeking to add newer cryptographic capabilities without redesigning their existing hardware security architecture.
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 elliptic-curve cryptography (ECC). SEALSQ says that combination is intended to allow manufacturers to use classical and post-quantum mechanisms as they prepare products and systems for changing security requirements.
The company describes the component as combining a hardware Root of Trust, cryptographic agility, a dedicated accelerator for cryptographic operations and a Serial Peripheral Interface (SPI). SEALSQ says the SPI interface is intended to handle the larger data exchanges associated with post-quantum keys, signatures and certificates. These are product design claims; the supplied announcement does not include independent performance tests or detailed benchmark results.
SEALSQ plans to demonstrate VaultIC409 through a TLS 1.3 application at Electronica, scheduled for November 10–13, 2026. The company says engineering samples are expected in Q2 2027, allowing customers and partners to evaluate the device and begin integration work. The underlying QS7001 platform is undergoing Common Criteria EAL5+ certification, according to the announcement; the source does not say that certification has been completed.
Adding PQC to Existing Device Designs
The announcement addresses a practical challenge for manufacturers: preparing connected products for post-quantum cryptography can require changes to hardware, software and the size of data exchanged. SEALSQ presents VaultIC409 as a way to add support for newer algorithms while retaining an established hardware security foundation. If it works as described and fits existing designs, that could reduce the scale of changes needed for some product lines.
The broader security concern is that sufficiently capable future quantum computers could threaten some widely used public-key cryptography, including RSA and ECC. The announcement does not say that such computers are currently able to break these systems. Instead, VaultIC409 is positioned as a preparation step: supporting post-quantum algorithms while also retaining classical options for hybrid or staged deployments.
For buyers, the announcement is an early product and roadmap update, not evidence that a finished, certified component is available for deployment. Sample timing, integration requirements, actual performance and final certification status will affect whether manufacturers can use the device in planned products.
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VaultIC409’s Platform and Roadmap
VaultIC409 extends SEALSQ’s VaultIC secure-element portfolio and is aimed at markets the company says overlap with those served by VaultIC408. SEALSQ’s stated proposition is that customers can pursue post-quantum support without redesigning their hardware security foundation. The source does not provide compatibility details for particular VaultIC408 designs, host processors or existing products, so the degree of reuse remains to be established.
The algorithms named in the announcement are standardized by the U.S. National Institute of Standards and Technology: ML-KEM under FIPS 203 and ML-DSA under FIPS 204. SEALSQ says the device will also support RSA and ECC. Its planned TLS 1.3 trade-show demonstration is scheduled before engineering samples, which the company expects in Q2 2027. The QS7001 platform is described as undergoing Common Criteria EAL5+ certification, rather than already holding that certification.
“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 post-quantum support
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Certification and Device Details Pending
Several details remain open. SEALSQ has not provided independent benchmark results, specific performance or power figures, pricing, or a final commercial release date in the supplied announcement. It is also unclear which existing customer designs can adopt VaultIC409 without hardware changes, and what software, host-device or protocol requirements integration will involve.
The QS7001 platform is still undergoing Common Criteria EAL5+ certification; the announcement does not give a completion date or confirm certification. Engineering samples are planned for Q2 2027, but sample availability and final product specifications may change. The trade-show demonstration is planned, not a report of a completed test.
cryptographic secure element for IoT devices
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Electronica Demo and Sample Evaluation
The next stated milestone is SEALSQ’s planned TLS 1.3 demonstration at Electronica, November 10–13, 2026, at Hall C6, booth 670. That demonstration may offer a closer view of how the company intends to use the secure element for protected connectivity, but the announcement does not provide demonstration results in advance.
SEALSQ expects to make engineering samples available in Q2 2027 for customer and partner evaluation. Those evaluations, along with progress on QS7001 certification and later product specifications, will help establish the device’s practical performance, integration needs and readiness for commercial use.
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Key Questions
What is VaultIC409?
VaultIC409 is a secure element announced by SEALSQ for use in connected devices. The company says it combines a hardware Root of Trust, cryptographic acceleration and SPI connectivity.
Which cryptographic algorithms is it designed to support?
SEALSQ says VaultIC409 is designed for ML-KEM (FIPS 203), ML-DSA (FIPS 204), RSA and ECC. The announcement describes support for both post-quantum and established cryptographic mechanisms.
When will VaultIC409 be available?
SEALSQ expects engineering samples in Q2 2027. The announcement does not give a date for general commercial availability.
Is VaultIC409 already certified?
No completed certification is confirmed in the announcement. SEALSQ says the underlying QS7001 platform is undergoing Common Criteria EAL5+ certification.
What is the next public milestone?
SEALSQ plans to demonstrate VaultIC409 using a TLS 1.3 application at Electronica from November 10–13, 2026.
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