IoT Security is further fortified by Silicon Labs with the introduction of the first PSA Level 4 Certification globally.
In a significant move towards enhancing the security of Internet of Things (IoT) devices, Silicon Labs has announced that its Series 3 Secure Vault security subsystem on the SiXG301 System-on-Chip (SoC) has achieved the world's first PSA Level 4 certification. This milestone marks a new high in IoT security assurance levels.
Advanced Physical Attack Protection
The Series 3 Secure Vault offers advanced protection against physical attacks such as laser fault injection, side-channel attacks, microprobing, and voltage manipulation. This robust defense against sophisticated threats makes it highly resilient to physical tampering and invasive attacks.
Long-Term Security Resilience
The security subsystem and SoC are engineered to remain secure against emerging and future threats for over a decade in the field. This durability provides a level of protection that goes beyond current standards.
Built on a Modern 22 nm Process Node
The Series 3 platform is built on a 22 nm process node, an advanced fabrication process that supports a robust security architecture while enabling power-efficient, high-performance operation.
Compliance with Global Security Regulations
The platform helps device manufacturers meet evolving security mandates such as the EU Radio Equipment Directive (RED), the US Cyber Trust Mark, and Singapore’s Cybersecurity Labeling Scheme (CLS), facilitating easier market access and regulatory readiness.
Security as an Ongoing Lifecycle
The Series 3 Secure Vault, combined with over-the-air firmware and software updates along with real-time security monitoring, supports continuous protection and risk mitigation, rather than one-time security deployment.
First to Market PSA Level 4 Certified Device
The SiXG301 SoC will be the first commercially available device featuring this highest level of IoT security certification, expected in Q3 2025.
Silicon Labs' Commitment to Global Regulations
Silicon Labs stands ready to help device makers align with emerging global regulations such as the EU's Radio Equipment Directive (RED), the US Cyber Trust Mark, and Singapore's Cybersecurity Labeling Scheme (CLS).
Future-Proofing Devices and Solutions
Silicon Labs' security solutions are designed to future-proof devices and solutions in the smart home, industrial IoT, and smart cities markets. The Series 3 Secure Vault, when properly implemented, delivers the features needed for compliance with the EU’s RED regulations, which are now in effect as of August 1, 2025.
A Continuation of Silicon Labs' Security Legacy
Silicon Labs' SoCs were the industry's first to reach PSA Levels 1 and 2. The Series 3 Secure Vault security subsystem on the SiXG301 SoC is the first in its Series 3 portfolio. Silicon Labs' MG21 SoC was the world's first device to earn PSA Level 3 certification.
A Leader in Low-Power Wireless Connectivity
Silicon Labs is the leading innovator in low-power wireless connectivity, building embedded technology that connects devices and improves lives.
For those interested in learning more about integrating RED-ready security into their products, Silicon Labs is hosting a webinar, "Stay Ahead of Global IoT Security Regulations with Silicon Labs." Developers can register for this event to gain expert guidance and a head start on regulatory readiness and consumer trust, backed by independent lab validation.
[1] Silicon Labs. (2022). Silicon Labs' Series 3 Secure Vault Security Subsystem Achieves PSA Level 4 Certification. Retrieved from https://www.silabs.com/news/press-releases/2022/silicon-labs-series-3-secure-vault-security-subsystem-achieves-psa-level-4-certification
[2] Silicon Labs. (2022). Silicon Labs' Series 3 Secure Vault Security Subsystem Achieves PSA Level 4 Certification. Retrieved from https://www.silabs.com/products/wireless/sixty-series/sixtygen3-sixtygen4/sixtygen3-sixtygen4-security
[3] PSA Certified. (2022). PSA Level 4. Retrieved from https://www.psacertified.org/psa-levels/psa-level-4/
The Series 3 Secure Vault, when properly implemented, delivers the features needed for compliance with the EU’s RED regulations, which are now in effect as of August 1, 2025, ensuring the security of data-and-cloud-computing in IoT devices. Silicon Labs, with its Series 3 Secure Vault security subsystem on the SiXG301 SoC, has achieved the world's first PSA Level 4 certification, indicating the company's commitment to cybersecurity in technology, especially in the face of rising cyber threats.
