Sikur is a cybersecurity platform focused on passwordless authentication, end-to-end encrypted communication, and critical asset management for enterprises. The platform addresses threats such as phishing, malware, ransomware, and IoT intrusions across IT, OT, and ICS environments. Sikur's core offerings include: **Secure Communication Platform:** Provides end-to-end encrypted messaging, voice calls, video calls, and document sharing for both private and public organizations. Encryption is applied at the source, protecting data in transit and at rest. The platform includes the Sikur Messenger application and a hardened smartphone (Sikur One) that is factory-certified with pre-configured security policies to mitigate data leakage and espionage. **Passwordless Authentication & Source Encryption (Sikur ID SDK):** An SDK with APIs for integrating passwordless authentication and source-level encryption into mobile and web applications. It eliminates passwords to prevent phishing and credential theft, and supports encryption of data in legacy systems before it leaves the device. **Critical Asset Management:** Built on a Zero Trust architecture, this solution manages IT, OT, and ICS critical assets with continuous, real-time authentication of network components. It addresses the convergence of IT and OT environments, reducing the risk of cross-network attacks. Compliant with GDPR, the US IoT Cybersecurity Improvement Act (2020), and the UK Code of Practice for Consumer IoT Security (2021). The platform is designed for organizations seeking compliance with global data protection regulations including GDPR and LGPD.