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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; certification of the underlying platform is still in progress.
SEALSQ has announced VaultIC409, a secure element built on its QS7001 platform that is designed to support post-quantum cryptography alongside RSA and ECC in connected devices. The company says the product targets existing VaultIC markets and is intended to let manufacturers add newer cryptographic methods without redesigning their hardware security foundation; samples are not expected until Q2 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 established RSA and elliptic-curve cryptography (ECC). The company describes the combination as a way to support hybrid architectures in which conventional and post-quantum mechanisms can be used during a gradual migration. The announcement does not provide independent test results or detailed performance figures.
The device combines a hardware Root of Trust, cryptographic acceleration and a Serial Peripheral Interface (SPI). SEALSQ says the accelerator handles intensive cryptographic operations while sensitive keys and other cryptographic assets remain in a protected hardware environment. The SPI connection is intended to handle the larger data exchanges associated with some post-quantum keys, signatures and certificates.
The company 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. SEALSQ expects engineering samples in Q2 2027 for customers and partners to evaluate. The QS7001 platform underlying the product is undergoing Common Criteria EAL5+ certification, according to the announcement.
A Migration Path for Connected Devices
The announcement addresses a practical hardware challenge: adding post-quantum cryptography can require more processing and larger data exchanges than many existing embedded security designs were built to handle. For manufacturers of industrial, energy and IoT devices, a secure element that supports both newer and established algorithms could offer a route to prepare products without replacing their wider security architecture, if the promised compatibility works as described.
The timing is relevant because connected products often remain deployed for years, while cryptographic standards and requirements may change during their service lives. SEALSQ CEO Carlos Moreira said manufacturers need to prepare for new EU and U.S. security requirements. The announcement does not identify specific rules or deadlines, so the statement should be treated as the company’s rationale rather than evidence that a particular regulation mandates VaultIC409.
For readers evaluating the product, the key distinction is between an announced design and a shipping component. VaultIC409 may offer a platform for testing quantum-resistant algorithms in embedded systems, but customers will need samples, integration work and performance data before judging whether it fits their products.
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From Classical to Post-Quantum Security
RSA and ECC are widely used public-key cryptographic methods. The concern behind post-quantum cryptography is that sufficiently capable quantum computers could threaten some public-key systems, although the announcement does not claim that such machines are currently able to break these algorithms. Standards bodies have published post-quantum algorithms intended to address that future risk. SEALSQ identifies ML-KEM and ML-DSA by their respective FIPS standards and presents support for them alongside RSA and ECC.
VaultIC409 extends the company’s VaultIC secure element portfolio and is aimed at markets also served by VaultIC408, SEALSQ says. Its stated promise is a path to post-quantum support without redesigning the existing hardware security foundation. That is a company description; the announcement does not detail which existing designs are compatible, what software changes are needed, or whether all VaultIC408 customers can migrate directly.
“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 cryptography
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Certification and Compatibility Still Pending
Several points remain unconfirmed by the announcement. Common Criteria EAL5+ certification applies to the QS7001 platform and is still in progress; the source does not give a completion date or describe the scope of any eventual certification. It also does not state when VaultIC409 itself will complete product-level evaluation, if applicable.
SEALSQ has not published detailed benchmarks for cryptographic speed, power use, memory requirements, supported key and signature sizes, or the device’s cost. The extent of compatibility with customers’ existing hardware and software is also unspecified. Until engineering samples are available, customers cannot independently assess integration demands or performance in their own applications.
The company’s references to approaching EU and U.S. security requirements do not name particular regulations, compliance obligations or effective dates. Nor does the announcement establish that VaultIC409 has been independently tested against those requirements. Those details will matter to manufacturers deciding whether the component meets their product and regulatory needs.
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Demonstration and Samples Ahead
The next stated public milestone is SEALSQ’s planned Electronica demonstration from November 10–13, 2026. The company says the TLS 1.3 application will show how the secure element is intended to support secure connectivity, but has not supplied a demonstration protocol or results in the announcement.
SEALSQ expects to make engineering samples available in Q2 2027, when customers and partners can begin evaluation and integration. Updates on sample availability, platform certification, technical specifications and compatibility will help establish how readily the announced design can be used in production devices.
cryptographic secure element for IoT devices
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Key Questions
What is VaultIC409?
VaultIC409 is a secure element announced by SEALSQ for connected devices. It is built on the company’s QS7001 platform and is designed to support post-quantum and established cryptographic algorithms.
Which cryptographic standards does it support?
SEALSQ says the device is designed to support ML-KEM (FIPS 203) and ML-DSA (FIPS 204), alongside RSA and ECC. The announcement does not include independent test results or performance benchmarks.
When will VaultIC409 be available?
SEALSQ expects engineering samples in Q2 2027. The company has not announced a commercial shipping date.
Is VaultIC409 already certified?
No certification completion is reported. SEALSQ says the underlying QS7001 platform is undergoing Common Criteria EAL5+ certification; it did not provide a completion date.
Where can the device be demonstrated?
SEALSQ plans a demonstration using a TLS 1.3 application at Electronica, November 10–13, 2026, in Hall C6, stand 670. The demonstration is planned, not yet reported as completed.
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