Adeniyi Adeyemi, an ex-IT contract worker with the financial institution, stole personal information of colleagues which he then used as part of an identity theft scam.
The 27 year-old used the details to create false bank accounts into which he transferred funds from charities, whose account information had been published online to help encourage more donations.
Funds would then either be withdrawn or then transferred to a second fake account.
The accused was caught following an investigation by the New York/New Jersey Electronic Crimes Task Force of the United States Secret Service, which traced suspicious activity to his home.
District attorney Cyrus Vance said: âThis defendant invaded the privacy of thousands of employees by stealing their personal and private information.â
âHe victimized his colleagues, charities, and nonprofits. Particularly because identity theft is such a serious problem in our city and nation, I thank the members of our Cybercrime and Identity Theft Bureau for their work on these difficult cases.â
Mr Adeyemi will receive a sentence later in the month.
By Jim Ottewill