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SEALSQ has announced VaultIC409, a secure element designed to add support for post-quantum cryptography to connected-device security without requiring customers to redesign their existing hardware security foundation. It is designed for ML-KEM, ML-DSA, RSA and ECC; engineering samples are planned for Q2 2027, and the platform is undergoing Common Criteria EAL5+ certification.
SEALSQ has announced VaultIC409, a secure element designed to let manufacturers add post-quantum cryptography to connected devices without redesigning their existing hardware security foundation. The company says the device supports the newer ML-KEM and ML-DSA standards alongside RSA and ECC, and is built on its QS7001 platform, which is undergoing Common Criteria EAL5+ certification.
VaultIC409 is intended for markets already served by SEALSQ’s VaultIC408, including smart energy, industrial equipment and Internet of Things devices, according to the company’s announcement. Its features include a hardware Root of Trust, cryptographic acceleration and a Serial Peripheral Interface, or SPI, connection to a host device. SEALSQ says the SPI interface is intended to handle the 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, as well as established RSA and ECC algorithms. That combination is intended to let manufacturers use conventional and post-quantum mechanisms in hybrid security designs. SEALSQ says cryptographic operations run in a dedicated hardware accelerator, with sensitive cryptographic assets kept in a protected hardware environment.
The company plans to demonstrate VaultIC409 through a TLS 1.3 application at Electronica, scheduled for November 10–13, 2026. SEALSQ expects to make engineering samples available in Q2 2027 for customer and partner evaluation. The announcement does not say that the product is generally available now.
A Hardware Route to PQC
Connected-device makers may face a lengthy update cycle: security components selected for a product can remain in use long after its initial design. A secure element that supports both established algorithms and post-quantum standards could give manufacturers a way to prepare future designs for changing cryptographic requirements while retaining familiar hardware architectures. SEALSQ presents VaultIC409 as a path that avoids redesigning the existing security foundation, though the announcement does not provide independent test results or customer deployment evidence.
The technical challenge is not limited to choosing a new algorithm. Post-quantum cryptography can involve larger keys, signatures and certificates, increasing the amount of data devices need to exchange and the computational work required. SEALSQ’s stated combination of hardware acceleration and SPI connectivity addresses those implementation demands. Whether it meets particular products’ performance, power, cost and certification needs will require evaluation by manufacturers.
Supporting ML-KEM and ML-DSA alongside RSA and ECC may also matter during a gradual migration, when systems need to interoperate with existing infrastructure. However, algorithm support alone does not establish that a product or network is secure against every future threat; implementation, key management and system-level choices remain relevant.
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From VaultIC408 to QS7001
VaultIC409 extends SEALSQ’s VaultIC secure-element portfolio and is aimed at the same established markets as VaultIC408, the company said. Its stated distinction is support for post-quantum algorithms alongside traditional cryptography, rather than a move away from RSA and ECC. SEALSQ describes this as a way to prepare for hybrid security architectures and the changing demands of connected-device design.
The underlying QS7001 platform is undergoing Common Criteria EAL5+ certification, according to the announcement. That wording describes a certification process in progress; it does not mean the platform has already received the certification. SEALSQ cited approaching security requirements in the European Union and United States as a reason manufacturers should prepare, but did not identify specific regulations, deadlines or obligations in its announcement.
SEALSQ is a semiconductor and security-products company listed on Nasdaq as LAES. The information about VaultIC409’s capabilities, intended markets and planned schedule comes from the company’s announcement, as reported by The Quantum Insider on October 12, 2026.
“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 hardware
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Certification and Performance Still Pending
Several practical details remain unreported. SEALSQ has not published performance figures, power consumption, pricing, production volumes or a general availability date. It has also not provided independent evaluations showing how VaultIC409 performs with ML-KEM or ML-DSA in specific host systems, or how its larger data exchanges affect device designs.
The QS7001 platform’s EAL5+ certification is still in progress, according to the company. The announcement does not give a certification completion date or clarify whether VaultIC409 itself will be evaluated separately. The planned Q2 2027 engineering samples are a future target, not a confirmation of shipment or commercial release.
SEALSQ referred to approaching EU and U.S. security requirements but did not name the rules or explain how they apply to particular device categories. The timing and implementation implications for manufacturers therefore cannot be established from the announcement alone.
hardware security module for connected devices
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Electronica Demo, Then Samples
The next public milestone is SEALSQ’s planned TLS 1.3 demonstration at Electronica from November 10 to 13, 2026. The company says the presentation will show how the secure element’s hardware-based security and cryptographic acceleration can be used in a connected-device application. A demonstration will provide an opportunity to see the technology, but it would not by itself establish production readiness or independent performance.
SEALSQ plans to offer engineering samples in Q2 2027 so customers and partners can assess the device and begin integration work. Further information about certification status, measured performance, pricing and commercial availability will be needed for manufacturers to judge whether VaultIC409 fits their products.
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Key Questions
What is VaultIC409?
VaultIC409 is a secure element announced by SEALSQ for use in connected devices. It is built on the company’s QS7001 platform and is designed to protect cryptographic assets and support device security functions.
Which cryptographic algorithms is it designed to support?
SEALSQ says VaultIC409 supports ML-KEM (FIPS 203) and ML-DSA (FIPS 204), as well as RSA and ECC. The company says this combination is intended to support post-quantum and established cryptography, including hybrid designs.
Is VaultIC409 available to buy now?
No commercial availability date was announced. SEALSQ plans to make engineering samples available in Q2 2027 for evaluation and integration work.
Has the QS7001 platform received EAL5+ certification?
SEALSQ says the platform is undergoing Common Criteria EAL5+ certification. The announcement does not say that certification has been completed.
When will SEALSQ demonstrate VaultIC409?
The company plans a TLS 1.3 application demonstration at Electronica, scheduled for November 10–13, 2026.
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