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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, with engineering samples expected in Q2 2027; certification of the underlying platform is still in progress.
SEALSQ has announced VaultIC409, a secure element built on the company’s QS7001 platform to support post-quantum cryptography in connected devices. The company says the product targets the same markets as its VaultIC408 and is intended to give existing customers a route to new cryptographic methods without redesigning their hardware security architecture.
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 algorithms including RSA and elliptic-curve cryptography (ECC). Supporting both newer and established methods is intended to help manufacturers manage hybrid deployments as they update device security.
The announced features include a hardware-based Root of Trust, cryptographic agility, dedicated hardware acceleration and a Serial Peripheral Interface (SPI) connection to a device’s host. SEALSQ says the accelerator will handle computationally intensive cryptographic operations while sensitive keys and other cryptographic assets remain in a protected hardware environment. The company describes SPI as a way to exchange the larger data sets that post-quantum keys, signatures and certificates can require.
SEALSQ plans to demonstrate VaultIC409 through a TLS 1.3 application at Electronica, scheduled for November 10–13, 2026, at booth Hall C6–670. The company says engineering samples are expected in Q2 2027, for customer and partner evaluation and integration work. Those are planned milestones; the announcement does not say that samples are currently available.
Adding PQC to Connected Devices
VaultIC409 addresses a practical issue for manufacturers preparing connected products for post-quantum cryptography: newer algorithms can require larger keys and signatures and place different demands on embedded processors and communications between components. A secure element that combines cryptographic processing and protected key handling could let device makers assess those changes without replacing their existing hardware security foundation, if the product performs as described and fits their designs.
The announcement matters most as a product development milestone, not evidence that quantum computers can currently break deployed RSA or ECC systems. SEALSQ frames the product as preparation for future security requirements and for markets including smart energy, industrial equipment and IoT. The stated aim is to support device identity, secure communications and trust during operation while customers evaluate a move toward quantum-resistant methods.
Manufacturers will still need to assess implementation details, performance, compatibility and certification before deciding whether VaultIC409 meets their requirements. The announcement identifies a proposed path and feature set, but does not provide independent test results or customer deployment data.
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QS7001 Certification Still Underway
VaultIC409 extends SEALSQ’s VaultIC secure-element family. The company says it targets the same established markets as VaultIC408, allowing current customers to consider post-quantum support without redesigning their hardware security architecture. The source material does not specify which VaultIC408 designs or products will be compatible with VaultIC409, or whether adopting it would require other changes to a device.
The secure element is built on QS7001, which SEALSQ says is undergoing Common Criteria EAL5+ certification. That certification process is not described as complete. The distinction matters: VaultIC409’s announced capabilities and its underlying platform’s certification status are separate from a completed evaluation or certification of the product itself.
SEALSQ CEO Carlos Moreira said customers need a path to post-quantum security and cited approaching EU and U.S. security requirements. The announcement does not identify particular rules, deadlines or product categories covered by those requirements, so the statement should be read as the company’s rationale rather than a detailed regulatory account.
“VaultIC409 gives our customers a direct path to post-quantum security on a certified platform they already know.”
— Carlos Moreira, founder and CEO of SEALSQ
hardware security module for IoT devices
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Performance and Certification Questions
Several details remain unconfirmed. SEALSQ has not supplied measured performance, power consumption, memory requirements, pricing, final technical specifications or named customer deployments in the source material. It is also not clear how the device handles particular hybrid configurations, or what changes host-device makers may need to make beyond the stated intention to avoid redesigning their hardware security architecture.
The company says the QS7001 platform is undergoing Common Criteria EAL5+ certification; no completion date or certification outcome is provided. The announcement also does not establish that VaultIC409 itself has completed a separate certification. The planned demonstration and Q2 2027 sample schedule could provide further information, but both remain future milestones as of the announcement.
cryptographic secure element for embedded systems
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Trade-Show Demo and Sample Release
SEALSQ’s next stated public milestone is a TLS 1.3 demonstration at Electronica on November 10–13, 2026. The company says the demonstration will show how the secure element’s hardware security, cryptographic acceleration and connectivity can be used in a connected-device application. It has not yet reported results from that demonstration.
After the event, the next stated development step is to make engineering samples available in Q2 2027 for customer and partner evaluation. Manufacturers will then be able to assess integration needs and product suitability, while the status of QS7001 certification remains a point to track. SEALSQ has not provided a firm commercial release date in the supplied announcement.
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Key Questions
What is VaultIC409?
VaultIC409 is a SEALSQ secure element built on the QS7001 platform. It is designed to protect cryptographic assets and support security functions in connected devices.
Which cryptographic algorithms does it support?
SEALSQ says it is designed to support ML-KEM (FIPS 203), ML-DSA (FIPS 204), RSA and ECC. The company presents this mix as support for post-quantum and established cryptographic methods.
When will VaultIC409 be available?
SEALSQ expects engineering samples in Q2 2027. It has not given a commercial release date in the supplied announcement.
Has VaultIC409 completed Common Criteria EAL5+ certification?
No completion is reported. SEALSQ says the underlying QS7001 platform is undergoing the Common Criteria EAL5+ certification process.
What will SEALSQ demonstrate at Electronica?
The company plans to show VaultIC409 in a TLS 1.3 application at Electronica, November 10–13, 2026. The announcement does not include demonstration results because the event is still upcoming.
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