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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 Q2 2027; the platform is undergoing Common Criteria EAL5+ certification.
SEALSQ has announced VaultIC409, a secure element designed to support post-quantum cryptography in connected devices while giving manufacturers a route to add those capabilities without redesigning their existing hardware security architecture, according to the company. Built on SEALSQ’s QS7001 platform, the device is designed to support ML-KEM and ML-DSA as well as RSA and elliptic-curve cryptography (ECC); engineering samples are planned for Q2 2027.
SEALSQ says VaultIC409 combines a hardware Root of Trust, cryptographic acceleration and a Serial Peripheral Interface (SPI) connection. The company says the accelerator is intended to handle demanding cryptographic operations while sensitive keys and other assets remain in a protected hardware environment. SPI is intended to accommodate larger data exchanges associated with post-quantum keys, signatures and certificates.
The device is designed to support ML-KEM (FIPS 203) for key establishment and ML-DSA (FIPS 204) for digital signatures, alongside RSA and ECC. The announcement describes this mix as supporting classical and post-quantum mechanisms, which could allow manufacturers to use different cryptographic approaches as products and security requirements change. SEALSQ says VaultIC409 targets the same established markets as its VaultIC408 product and is intended to let existing customers update security capabilities without replacing their hardware security foundation.
SEALSQ plans to demonstrate the secure element through a TLS 1.3 application at Electronica, scheduled for November 10–13, 2026, in Munich. The company expects to make engineering samples available in Q2 2027 for customer and partner evaluation. Those are planned milestones, not evidence that the product is already generally available or that customers have completed integrations.
A Hardware Route to PQC
Connected-device makers face a practical challenge as they prepare for post-quantum cryptography: newer algorithms can involve larger keys, signatures and certificates, as well as different computational demands from familiar RSA and ECC systems. A secure element is a dedicated component for managing cryptographic operations and protecting keys, so support at that layer may help manufacturers incorporate new algorithms into devices without replacing an entire security design.
VaultIC409’s proposed support for both established and post-quantum algorithms may be relevant to products that need to operate through a period of migration. SEALSQ points to smart energy, industrial and IoT markets, where devices can remain deployed for years and security updates may need to fit existing hardware. The announcement, however, describes intended capabilities; it does not establish performance, deployment results or regulatory compliance for finished products.
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QS7001 Platform and Certification
VaultIC409 extends SEALSQ’s VaultIC secure-element line and is built on the company’s QS7001 platform. SEALSQ says the new product is aimed at the same markets as VaultIC408, positioning it as a continuation of an existing product family rather than a wholly new device-security category.
The QS7001 platform is undergoing Common Criteria EAL5+ certification, according to the company. That wording describes a certification process in progress, not a completed certification. SEALSQ’s announcement also frames the product against the expected impact of quantum computing on some widely used public-key cryptography. Its stated goal is to give manufacturers a way to prepare for post-quantum algorithms while retaining support for RSA and ECC where needed.
“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 Product Readiness
Several points remain unconfirmed beyond the company’s product announcement. SEALSQ has not provided performance figures, pricing, final specifications, power-consumption data or details of customer deployments in the supplied material. It is also unclear which exact RSA and ECC configurations VaultIC409 will support, or how manufacturers will integrate and validate it in particular devices.
The QS7001 platform’s EAL5+ certification is still in progress, and the announcement does not give a completion date. The planned Electronica demonstration and Q2 2027 engineering samples have not yet taken place. The company’s references to approaching EU and U.S. security requirements are not accompanied here by a list of rules or deadlines, so the specific regulatory obligations affecting individual customers cannot be determined from the announcement.
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Demonstration and Sample Timeline
SEALSQ says it will show VaultIC409 in a TLS 1.3 application at Electronica from November 10 to 13, 2026. That demonstration should offer a chance to see a stated use case, though the announcement does not specify what performance or interoperability details will be shown.
The next planned product milestone is engineering samples in Q2 2027, which SEALSQ says will allow customers and partners to evaluate the device and begin integration work. The company has not announced a general availability date. Certification progress and information from sample evaluations will help clarify when manufacturers might be able to build VaultIC409 into commercial products.
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Key Questions
What is SEALSQ’s VaultIC409?
It is a secure element announced by SEALSQ for connected devices. The company says it is designed to support post-quantum algorithms alongside RSA and ECC, with hardware-based trust and cryptographic acceleration.
Which post-quantum standards does it support?
SEALSQ says VaultIC409 is designed to support ML-KEM (FIPS 203) for key establishment and ML-DSA (FIPS 204) for digital signatures. The announcement also names RSA and ECC support.
When will VaultIC409 be available?
SEALSQ expects to provide engineering samples in Q2 2027. It has not announced a general commercial availability date.
Is the platform already EAL5+ certified?
No completed certification is confirmed in the announcement. SEALSQ says the underlying QS7001 platform is undergoing Common Criteria EAL5+ certification.
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