NYDFS 23 NYCRR 500: Pass Your Examination With Evidence on File.

Part 500 applies to entities authorized or licensed under New York Banking, Insurance, or Financial Services Law — including out-of-state firms with NY operations. A Connecticut RIA registered in NY because of NY-resident clients is in scope for those operations. A Hartford insurance carrier with a NY underwriting desk is in scope for that desk. Multi-state firms typically scope Part 500 to the NY-touching operations, not the entire enterprise.

Class A status applies to covered entities exceeding $20M in NY revenue and 2,000+ employees globally, or $1B in NY-relevant business. Class A entities face additional requirements: independent audit, dedicated CISO with specific qualifications, expanded vulnerability management. Most regional banks, mid-size insurance carriers, and large RIAs are not Class A. The threshold review is annual — firms approaching the boundary should monitor closely. Triton scopes Class A status as part of intake.

The Senior Officer or Board must annually certify in writing that the firm’s cybersecurity program is compliant with Part 500. The certification covers the prior calendar year. The supporting work-paper documents the evidence the Senior Officer reviewed before signing. Inaccurate certification — particularly with knowledge of underlying gaps — is a violation in itself. The certification is filed with NYDFS by April 15 of each year for the prior year.

Cybersecurity events likely to materially harm the entity, or events involving extortion payment, must be reported to NYDFS within 72 hours of determination. The clock starts at determination, not discovery. Determination requires the firm to assess whether the event meets the materiality threshold — and the assessment itself should be documented. Events involving extortion payments require additional 24-hour notification with payment details and rationale.

Total compliance investment for a 5-25 person RIA typically runs $35,000 to $85,000 over the first year. The split: technical readiness deployment ($15-35K), policy and risk-assessment authoring ($8-20K), CISO certification work-paper preparation ($5-12K), continuous monitoring tooling ($4-8K annual). Class A firms run substantially higher because of the independent-audit requirement.

For non-Class A covered entities, the CISO function can be assigned to a senior officer of the firm or to a qualified third-party service provider with appropriate oversight. We provide vCISO services that satisfy the CISO function for non-Class A firms; we coordinate with named outside counsel and the Senior Officer who signs the certification. Class A firms typically maintain a dedicated employee CISO; we provide technical evidence and program operation in support.

Document the determination. Part 500 requires notification when an event is likely to materially harm the entity — the firm performs the materiality analysis. The analysis itself should be documented in the cybersecurity event notification log, regardless of whether the conclusion is “report” or “do not report.” Examiners will ask for events that were considered and determined not reportable; the documentation is the answer.

No. Dark web monitoring is a notification service, not a Part 500 control. The 12 sections of Part 500 do not reference it. The correct investment is the proactive hardening Part 500 actually requires — MFA on privileged access, encryption at rest and in transit, third-party security oversight, audit trail and monitoring, and incident response with the 72-hour clock built in. We do not bundle dark web monitoring and it does not appear on any examiner’s artifact list.