Silicon Labs Achieves PSA Level 4 Certification for IoT Security Innovations

Silicon Labs Achieves PSA Level 4 Certification

In a major achievement for the Internet of Things (IoT) security landscape, Silicon Labs (NASDAQ: SLAB), a leading innovator in low-power wireless technologies, recently announced that its Series 3 Secure Vault security subsystem on the SiXG301 System on Chip (SoC) has attained the world's first PSA Level 4 certification. This prestigious designation represents the highest security assurance level recognized by PSA Certified, further solidifying Silicon Labs' dominant position in the IoT security domain.

The Significance of PSA Level 4 Certification

The PSA (Platform Security Architecture) introduced the Level 4 certification to combat the growing complexity of security threats targeting embedded devices. Unlike previous levels, this top-tier certification validates resilience against sophisticated attacks, including laser fault injection and side-channel attacks, which were once considered theoretical risks. With the escalating threat landscape, achieving Level 4 is not just a milestone; it's a necessity for any company aiming to lead in IoT security.

Matt Johnson, President and CEO of Silicon Labs, emphasized the importance of security, stating, "Security isn't just a feature – it's foundational to everything we develop." This accomplishment not only validates Silicon Labs' leadership in the field but also highlights their commitment to accelerating IoT growth through robust security measures.

A Track Record of Security Leadership

Silicon Labs has consistently been at the forefront of IoT security advancements. Their previous SoC, MG21, was the first to achieve PSA Level 3 certification, setting the stage for this leap to Level 4. In fact, Silicon Labs has been pioneering security benchmarks by also being the first to reach PSA Levels 1 and 2.

The successful achievement of the PSA Level 4 certification was made possible through a collaboration with Keysight Technologies, a leading name in design, emulation, and testing solutions. This partnership underscored the deep technical expertise and commitment both teams possess towards fortifying IoT devices against increasingly sophisticated threats.

Marc Witteman, Technical Director at Keysight, praised the collaboration, noting that their advanced testing methodologies were instrumental in validating the resilience of the Series 3 Secure Vault against modern security threats.

Future-Proofing Through Security-First Design

The robust security features embedded within the Series 3 Secure Vault and the SiXG301 SoC are not just designed to meet current needs but to anticipate future challenges. With an intention to endure for more than a decade in the field, these products come equipped with industry-leading defenses and the capacity for over-the-air firmware updates, which will be critical for ongoing security in the fast-evolving IoT landscape.

Silicon Labs' Series 3 platform, built on an advanced 22 nm process, scales the security features of its award-winning Series 2 platform, enhancing its robustness with PSA Level 4 certification. Looking forward, all Series 3 devices will be crafted upon this formidable security foundation, with the SiXG301 expected to become available in Q3 2025.

Navigating the Regulatory Landscape

With global regulations around IoT security becoming a priority, such as the EU's Radio Equipment Directive (RED) and the US Cyber Trust Mark, Silicon Labs is well-positioned to assist manufacturers in aligning with these emerging mandates. By offering a comprehensive approach to security, they provide device makers a head start on regulatory compliance, ensuring a trust-based relationship with consumers.

With the RED regulations now in effect as of August 1, 2025, when properly integrated, Silicon Labs' Secure Vault delivers essential features for compliance requirements. Furthermore, the company is hosting an upcoming webinar titled "Stay Ahead of Global IoT Security Regulations with Silicon Labs" to guide developers on incorporating RED-ready security into their products.

Conclusion

In conclusion, Silicon Labs continues to pave the way for innovation in IoT security with the recent announcement of the PSA Level 4 certification for its Series 3 Secure Vault. This achievement not only reinforces their commitment to embedding security at its core but also ensures that they are prepared to meet the growing demands and challenges of a connected world. With their expert guidance and a proactive approach, Silicon Labs is setting new standards in the secure IoT landscape, proving that security is indeed a continuous journey rather than a destination.

For more information about Silicon Labs and its groundbreaking security-first design, visit Silicon Labs Security Overview.