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.
