Isaca Exam IT Risk Fundamentals Topic 4 Question 14 Discussion

Legacy systems using older technology often suffer from the inability to patch or apply system updates, representing a significant vulnerability. This lack of updates can leave the system exposed to known security vulnerabilities, making it an attractive target for cyberattacks. Additionally, unsupported systems may not receive critical updates necessary for compliance with current security standards and regulations. While rising maintenance costs and lost opportunities are also concerns, the primary vulnerability lies in the system's inability to be updated, which directly impacts its security posture. This issue is highlighted in various IT security frameworks, including ISO 27001 and NIST SP 800-53.