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2023-09-27 10:00:00 | Combiner la sécurité et la sécurité des OT pour une gestion des cyber-risques améliorée Combining IT and OT security for enhanced cyber risk management (lien direct) |
The content of this post is solely the responsibility of the author. AT&T does not adopt or endorse any of the views, positions, or information provided by the author in this article. Integrating IT and OT security for a comprehensive approach to cyber threats in the digital age. Historically, IT and OT have operated in separate worlds, each with distinct goals and protocols. IT, shaped by the digital age, has always emphasized the protection of data integrity and confidentiality. In this space, a data breach can lead to significant consequences, making it crucial to strengthen digital defenses. On the other hand, OT, a legacy of the Industrial Revolution, is all about ensuring machinery and processes run without interruptions. Any machine downtime can result in major production losses, making system availability and safety a top priority. This difference in focus has created a noticeable cultural gap. IT teams, often deep into data management, might not fully grasp the real-world impact of a stopped production line. Similarly, OT teams, closely connected to their machines, might not see the broader impact of a data breach. The technical challenges are just as significant. OT systems are made up of specialized equipment, many from a time before cybersecurity became a priority. When these older systems connect to modern IT networks, they can become weak points, open to today\'s cyber threats. This risk is even higher because many OT systems use unique protocols and hardware. These systems, once isolated, are now part of more extensive networks, making them accessible and vulnerable through different points in an organization\'s network. Additionally, common IT tasks, like updating software, can be more complex in OT. The equipment in OT often has specific requirements from their manufacturers. What\'s standard in IT can become a complicated task in OT because of the particular nature of its systems. Combining IT and OT is more than just a technical task; it\'s a significant change in how companies see and manage risks. From the physical risks during the Industrial Revolution, we\'ve moved to a time when online threats can have real-world effects. As companies become part of bigger digital networks and supply chains, the risks increase. The real challenge is how to unify IT and OT security strategies to manage cyber risks effectively. The imperative of unified security strategies According to a Deloitte study, a staggering 97% of organizations attribute many of their security challenges to their IT/OT convergence efforts. This suggests that the convergence of IT and OT presents significant challenges, highlighting the need for more effective security strategies that integrate both domains. Steps to integrate IT and OT security: Acknowledge the divide: The historical trajectories of IT and OT have been distinct. IT has emerged as a standardized facilitator of business processes, while OT has steadfastly managed tangible assets like production mechanisms and HVAC systems. Therefore, the first step towards a unified front is recognizing these inherent differences and fostering dialogues that bridge the understanding gap between IT and OT teams and leaders. Develop a unified security framework: Optimized architecture: Given the distinct design principles of OT, which traditionally prioritized isolated operations, it\'s crucial to devise an architecture that inherently safeguards each component. By doing so, any vulnerability in one part of the system won\'t jeopardize the overall network\'s stability and security. Regular vulnerability assessments: Both environments should be subjected to periodic assessments to identify and address potential weak links. Multi-factor authentication: For systems pivotal to critical inf | Data Breach Tool Vulnerability Threat Industrial | Deloitte | ★★ |
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