Explore NetBlocks' 'Our Work' section to understand their methodology. Specifically, identify the three main pillars of their work and, for each pillar, describe in one sentence what it primarily focuses on or involves, as presented on that page.
Navigate to the NetBlocks homepage or any current page. Click on the 'Our Work' link in the navigation menu. Locate and identify the three main pillars or areas of NetBlocks' work. For each identified pillar, extract a concise description of its focus or activities.
Successfully navigate to the 'Our Work' page. Identify the three main pillars of NetBlocks' work. For 'Internet Shutdown Observatory', state its focus on real-time internet disruption monitoring and analysis. For 'Digital Rights and Governance', state its focus on defending human rights online and promoting open internet policies. For 'Cybersecurity and Infrastructure', state its focus on assessing network resilience and identifying vulnerabilities.