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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 at Electronica in November 2026 and expects engineering samples in Q2 2027; QS7001 is undergoing Common Criteria EAL5+ certification.
SEALSQ has announced VaultIC409, a secure element designed to support post-quantum cryptography in connected devices while allowing manufacturers to retain their existing hardware security architecture. The company says the device, built on its QS7001 platform, will support post-quantum standards as well as established RSA and ECC cryptography, with engineering samples planned for Q2 2027.
SEALSQ says VaultIC409 is designed to support ML-KEM (FIPS 203) for key establishment and ML-DSA (FIPS 204) for digital signatures, alongside RSA and elliptic-curve cryptography. That combination is intended to let manufacturers use classical and post-quantum mechanisms as they adapt security systems, rather than relying on a single algorithm family. The announcement describes the product as an addition to the company’s VaultIC portfolio and says it targets markets also served by VaultIC408.
The device combines a hardware Root of Trust, cryptographic acceleration and a Serial Peripheral Interface, or SPI, connection to a host device. SEALSQ says dedicated hardware will handle computationally intensive cryptographic operations and keep sensitive cryptographic assets within a protected environment. The company also says SPI is intended to accommodate larger data exchanges associated with post-quantum keys, signatures and certificates. These are product design descriptions from SEALSQ; the announcement does not provide independent performance measurements.
SEALSQ plans to demonstrate VaultIC409 with 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 underlying QS7001 platform is currently undergoing Common Criteria EAL5+ certification, according to the announcement; it does not say that certification has been completed or that VaultIC409 itself has received it.
A Migration Path for Device Security
VaultIC409 addresses a practical challenge for manufacturers: adopting post-quantum cryptography can require more processing capacity and larger exchanges of cryptographic data than some existing embedded systems were built to handle. SEALSQ’s stated goal is to provide those capabilities in a secure element that fits existing hardware security designs, potentially reducing the need for a full redesign. Whether customers can integrate it without substantial changes will depend on their products and implementation requirements; the announcement does not provide compatibility testing or deployment results.
Support for RSA and ECC alongside PQC algorithms may also help manufacturers manage a period when products need to work with a mix of older and newer systems. Secure elements are used to protect keys and device identities, and to support authenticated communications. A hardware product aimed at these functions could matter across industrial, smart-energy and IoT devices, sectors SEALSQ identifies as target markets. The announcement is a product release, however, not evidence that quantum computers can currently break RSA or ECC, or that VaultIC409 has been independently validated against future attacks.
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From VaultIC408 to Post-Quantum Support
SEALSQ presents VaultIC409 as an extension of its VaultIC secure-element family, aimed at customers in markets served by VaultIC408. Its stated proposition is to add support for post-quantum cryptographic algorithms while keeping a familiar hardware security foundation. The company describes this as a way to prepare products for changing security needs without redesigning that foundation.
The product announcement frames the need around the potential future impact of quantum computing on conventional public-key cryptography and the implementation demands of newer algorithms. It also points to approaching EU and U.S. security requirements, but does not identify particular rules, deadlines or obligations in the release. The QS7001 platform’s EAL5+ certification process remains underway, making the certification status a relevant part of the product’s development timeline rather than a completed credential.
“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 Integration Still Pending
Several details remain unconfirmed. SEALSQ has not announced final product specifications, pricing, production volumes or a commercial release date. Its stated Q2 2027 milestone is for engineering samples, not necessarily general availability. The company also has not provided test results showing how VaultIC409 performs with particular host processors, protocols or existing customer designs.
The QS7001 platform is undergoing Common Criteria EAL5+ certification; the timing and outcome of that process are not given. The announcement’s references to security requirements in the United States and Europe are not tied to named regulations or compliance assessments. It is also not clear which specific classical and post-quantum combinations will be supported in production implementations or what additional software and system changes customers may need.
secure element with cryptographic acceleration
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Electronica Demo and Sample Testing
The next public milestone identified by SEALSQ is its planned TLS 1.3 demonstration at Electronica, November 10–13, 2026. The demonstration is intended to show the secure element in an application, but the company has not published a detailed test plan or results in the announcement. The following stated step is to make engineering samples available in Q2 2027 so customers and partners can evaluate the device and begin integration work.
Updates to watch for include progress on QS7001 certification, final VaultIC409 specifications and evidence from customer evaluations. Those developments should clarify the device’s performance, compatibility, availability and the extent to which manufacturers can add its post-quantum capabilities without broader hardware changes.
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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 protect cryptographic assets and support secure device functions.
Which cryptographic algorithms is it designed to support?
SEALSQ says it is designed to support ML-KEM (FIPS 203), ML-DSA (FIPS 204), RSA and ECC. The announcement does not provide a full implementation specification.
When will VaultIC409 be available?
SEALSQ expects to offer engineering samples in Q2 2027. The company has not provided a date for general commercial availability.
Has the product completed EAL5+ certification?
No completion is reported. SEALSQ says the QS7001 platform is undergoing Common Criteria EAL5+ certification; the announcement does not give a completion date or certification outcome.
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