SierraSix

SierraSix is a cybersecurity company based in Adliswil, Switzerland working in grc & compliance, security awareness, incident response +2 more.

SierraSix (SI6 GmbH) is a Swiss cybersecurity and IT management provider focused on small and medium-sized enterprises (SMEs). It offers tailored security services, including an external CISO subscription (CISO-Abo), virtual CISO and managed CISO services, and CISO hotline support. Services cover security governance, risk and compliance (NIS2, DORA, Cyber Resilience Act, EU AI Act), ISMS dashboards and KPIs, supply chain and vendor risk management, backup and recovery planning, incident response readiness and reporting, security awareness, identity hardening, and security reviews of LLM applications against the OWASP LLM Top 10. The company also publishes a CISO blog and runs a community platform.