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NCO Group, also referred to as nco, is a threat actor name associated with an underground forum post claiming the leak of a MySQL database allegedly stolen from Vigorbuy.com, a Chinese business-to-consumer retail marketplace. The publicly observed activity consists of advertising purportedly stolen marketplace data for free download, including claims of payment information, user credentials, vendor access data, personal contact details, logistics records, API keys, and mail configuration data. The reported incident was assessed as potentially severe because such data, if authentic, could support payment fraud, account takeover, vendor-panel compromise, API abuse, spoofing, and follow-on scams targeting buyers and sellers. The breach claim was explicitly unverified and had not been independently confirmed. Based on the available high-confidence information, NCO Group is best characterized as a data-leak actor associated with alleged theft and exposure of e-commerce platform data; broader attribution, origin, tooling, and operational history are currently not available.
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