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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 to demonstrate it at Electronica in November 2026 and expects engineering samples in the second quarter of 2027; certification of the underlying platform is still in progress.
SEALSQ has announced VaultIC409, a secure element designed to support post-quantum cryptography alongside established algorithms in connected devices. The company says the product, built on its QS7001 platform, is intended to give existing customers a route to updated cryptography without redesigning their hardware security foundation; engineering samples are planned for the second quarter of 2027.
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 RSA and elliptic-curve cryptography (ECC). It is also designed with a hardware Root of Trust, cryptographic acceleration and a Serial Peripheral Interface (SPI) connection to its host device. The company says SPI can accommodate the larger data exchanges associated with post-quantum protocols.
The announcement describes the device as an extension of SEALSQ’s VaultIC portfolio and says it targets markets served by VaultIC408. Its intended uses include protecting device identities and credentials, helping establish secure communication channels and providing hardware-backed security services while a device is running. Those are stated design aims; the announcement does not provide independent performance results or product evaluation findings.
SEALSQ plans to show VaultIC409 using a TLS 1.3 application at Electronica, scheduled for November 10–13, 2026, in Munich. The company says engineering samples are expected in Q2 2027 for customer and partner evaluation. The underlying QS7001 platform is undergoing Common Criteria EAL5+ certification; the announcement does not say that certification has been completed.
A Hardware Route to PQC
Connected-device manufacturers may need to plan for cryptographic changes well before products already in the field reach replacement. Post-quantum algorithms can require larger keys, signatures and certificates than many conventional mechanisms, adding demands on embedded devices and the connections they use. A secure element designed to handle both established and newer algorithms could give manufacturers a way to assess those changes without replacing an entire hardware security design.
VaultIC409’s claimed support for RSA, ECC and post-quantum algorithms points to a possible hybrid-use case: manufacturers could maintain compatibility with existing cryptography while evaluating newer standards. But the practical value will depend on factors not established by the announcement, including real-world performance, integration work, certification results and eventual availability. For now, the news is a product announcement with a planned demonstration and future sample date, not evidence that devices have already deployed the component.
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From VaultIC408 to PQC
SEALSQ describes VaultIC409 as serving the same established markets as its VaultIC408 product and says customers can adopt it without redesigning their hardware security foundation. The company identifies smart energy, industrial equipment and Internet of Things devices as target areas. It has not provided details in the announcement about specific customer designs, deployment commitments or compatibility testing.
The product is framed around the industry’s move toward post-quantum cryptography: algorithms intended to address the risk that sufficiently capable future quantum computers could undermine some widely used public-key methods. SEALSQ’s stated approach combines these newer algorithms with RSA and ECC support. The company also says its platform is undergoing Common Criteria EAL5+ evaluation, a security certification process; the status remains in progress, rather than a completed 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
post-quantum cryptography secure element
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Certification and Performance Still Pending
SEALSQ has not published detailed benchmarks, power or memory requirements, pricing, production-volume plans or a firm commercial launch date. It is also unclear how much customer hardware or software work will be needed in practice, despite the company’s claim that existing customers can adopt VaultIC409 without redesigning their security foundation.
The announcement says the QS7001 platform is undergoing Common Criteria EAL5+ certification, but gives no expected completion date or certification outcome. The planned Electronica demonstration and Q2 2027 engineering samples are future milestones, not completed events. Independent testing and customer adoption were not reported.
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Demo First, Samples in 2027
The next scheduled public milestone is SEALSQ’s planned Electronica demonstration in Munich from November 10–13, 2026, where it says it will show a TLS 1.3 application using VaultIC409. Customers and partners are then expected to be able to evaluate engineering samples in Q2 2027, according to the company.
Further updates will be needed to establish the platform’s certification status, measured performance and commercial availability. The announcement does not specify when production units will ship or when a first customer product using VaultIC409 might reach market.
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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 it support?
SEALSQ says VaultIC409 is designed to support ML-KEM (FIPS 203), ML-DSA (FIPS 204), RSA and ECC. The announcement does not provide independent test results.
When will VaultIC409 be available?
SEALSQ expects engineering samples in Q2 2027. It has not announced a production release date or pricing.
Has the QS7001 platform completed EAL5+ certification?
No completion was reported. SEALSQ says the underlying QS7001 platform is undergoing Common Criteria EAL5+ certification; the outcome and timing are not yet known.
Will SEALSQ demonstrate VaultIC409 before samples are available?
The company plans to demonstrate it with a TLS 1.3 application at Electronica in Munich, November 10–13, 2026. The demonstration is planned, not yet reported as completed.
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