What are the challenges in securing legacy systems from cybersecurity threats?

Securing legacy systems against modern cybersecurity threats presents several specific challenges. One major issue is that legacy systems often lack the latest security features and updates that are common in modern systems, making them more vulnerable to evolving cyber threats. In addition, older systems may have unsupported or outdated software components that are no longer receiving security patches, leaving them exposed to potential exploits. Another challenge is that legacy systems may use outdated encryption protocols and authentication methods that are easier to breach compared to current standards. Moreover, the skills and knowledge required to secure legacy systems may be harder to come by as expertise in older technologies becomes less common. Overall, the complexities of modern cyber threats combined with the limitations of legacy systems can create significant hurdles in effectively safeguarding these older systems.