Legacy Systems
Cybersecurity statistics about legacy systems
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31% of healthcare practices are still running on legacy systems that cannot contain a breach quickly once it starts.
23% of healthcare practices describe their technology as antiquated.
52% of global organizations cite legacy infrastructure as a primary blocker to security or AI deployment.
36% of financial services organisations and 36% of IT & technology organisations report modernising most or all core systems, compared with 12% of public sector organisations and 19% of industrial organisations
Around 60% of US organisations, around 60% of UK organisations and 54% of German organisations say legacy technology still forms a significant part of their operations
28% of healthcare organizations operate medical devices past end-of-support.
Legacy Windows operating systems are most prevalent in retail (39%), healthcare (35%), and financial services (29%).
34% of SMBs admit their cybersecurity technology is outdated.
75% of CISOs report their enterprises rely on extending controls originally designed for other attack surfaces to cover AI-driven workflows and infrastructure.
1 in 14 files, initially deemed 'safe' by legacy systems, were proven to be malicious
18.9% of API-related exploits involved legacy APIs, including AJAX backends and URL parameter-based systems.