The NYDFS Part 500 Cybersecurity Audit Requirement

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Executive summary

As cyber threats grow ever more sophisticated and relentless, New York’s financial institutions face heightened regulatory expectations under NYDFS Part 500—anchored by a rigorous cybersecurity audit requirement for large entities. This mandate is not just about compliance; it’s an opportunity to strengthen resilience and build lasting trust in an increasingly digital financial ecosystem. NYDFS Part 500 is a requirement that was introduced in a 2023 amendment to the New York Department of Financial Services (NYDFS) 23 NYCRR Part 500 (“Part 500”) regulation, originally enacted in 2017. The regulation was enacted in response to the increasing frequency and sophistication of cyber threats targeting the financial sector, and seeks to protect sensitive customer information and ensure the resilience of financial institutions. A critical element of this regulatory framework is the annual cybersecurity audit requirement.

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