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 personal information in combination with any one or more of the following data elements, when either the personal information or the data element is not encrypted or encrypted with an encryption key that has also been 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:
(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: