Prohibits State contractors from distributing data to foreign adversaries.

Bill A5678 prohibits New Jersey state contractors and financial institutions from sharing data with "foreign adversaries" (defined as entities acting against U.S. national security). It requires the Department of the Treasury to create and maintain a public list of entities that sell, transfer, or disclose data to such adversaries, making them ineligible for state contracts, subsidies, tax benefits, or public works registrations. Entities listed must be notified and given a chance to contest inclusion, with false certifications risking fines up to $2 million and a five-year contract ban. The bill also bans state banking or insurance with financial institutions on the list, aiming to protect state data from foreign security threats.