Legacy IT has become the dirty little secret of digital transformation. These systems, which include servers, OSes, and applications, are relied on by almost every organization for business-critical activities – and many CISOs struggle to protect them from attackers.
During my time as CISO for a public company, I got a first-hand look at the depth of the legacy challenge. We had more than 1,000 servers in use that were built in 2003 but no longer supported by vendors, and more than 200 legacy servers were designated for business-critical activity that drove significant annual revenue. It’s a non-starter to take these servers offline, and protecting them comes at a significant cost.
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