N.Y. State Technology Law § 208
1. As used in this section, the following terms shall have the following meanings:
(a) "Private information" shall mean either: (i) personal information consisting of any information in combination with any one or more of the following data elements, when either the data element or the combination of personal information plus the data element is not encrypted or encrypted with an encryption key that has also been accessed or acquired:
(b) "Breach of the security of the system" shall mean unauthorized acquisition or acquisition without valid authorization of computerized data which compromises the security, confidentiality, or integrity of personal information maintained by a state entity. Good faith acquisition of personal information by an employee or agent of a state entity for the purposes of the agency is not a breach of the security of the system, provided that the private information is not used or subject to unauthorized disclosure. In determining whether information has been acquired, or is reasonably believed to have been acquired, by an unauthorized person or a person without valid authorization, such state entity may consider the following factors, among others:
(c) "State entity" shall mean any state board, bureau, division, committee, commission, council, department, public authority, public benefit corporation, office or other governmental entity performing a governmental or proprietary function for the state of New York, except:
2. Any state entity that owns or licenses computerized data that includes private information shall disclose any breach of the security of the system following discovery or notification of the breach in the security of the system to any resident of New York state whose private information was, or is reasonably believed to have been, accessed or acquired by a person without valid authorization. The disclosure shall be made in the most expedient time possible and without unreasonable delay, consistent with the legitimate needs of law enforcement, as provided in subdivision four of this section, or any measures necessary to determine the scope of the breach and restore the integrity of the data system. The state entity shall consult with the state office of information technology services to determine the scope of the breach and restoration measures. Within ninety days of the notice of the breach, the office of information technology services shall deliver a report on the scope of the breach and recommendations to restore and improve the security of the system to the state entity.
(b) If notice of the breach of the security of the system is made to affected persons pursuant to the breach notification requirements under any of the following laws, nothing in this section shall require any additional notice to those affected persons, but notice still shall be provided to the state attorney general, the department of state and the office of information technology services pursuant to paragraph (a) of subdivision seven of this section and to consumer reporting agencies pursuant to paragraph (b) of subdivision seven of this section:
5. The notice required by this section shall be directly provided to the affected persons by one of the following methods:
(d) Substitute notice, if a state entity demonstrates to the state attorney general that the cost of providing notice would exceed two hundred fifty thousand dollars, or that the affected class of subject persons to be notified exceeds five hundred thousand, or such agency does not have sufficient contact information. Substitute notice shall consist of all of the following:
7.