N.Y. Est. Powers & Trusts Law § 13-a-3.4

§ 13-A-3.4 Disclosure of other digital assets of principal\n Unless otherwise ordered by the court, directed by the principal, or\nprovided by a power of attorney, a custodian shall disclose to an agent\nwith specific authority over digital assets or general authority to act\non behalf of a principal a catalogue of electronic communications sent\nor received by the principal and digital assets, other than the content\nof electronic communications, of the principal if the agent gives the\ncustodian:\n (a) a written request for disclosure in physical or electronic form;\n (b) a copy of the power of attorney that gives the agent specific\nauthority over digital assets or general authority to act on behalf of\nthe principal;\n (c) an affidavit in which the affiant attests that the copy is an\naccurate copy of the original power of attorney and that, to the best of\nthe affiant's knowledge, the power remains in effect; and\n (d) if requested by the custodian:\n (1) a number, username, address, or other unique subscriber or account\nidentifier assigned by the custodian to identify the principal's\naccount; or\n (2) evidence linking the account to the principal.\n