A large spam and marketing dataset known as "B2B USA Businesses" was discovered online in 2017, exposing over 105 million records tied to professionals across corporate America. The list was not associated with a consumer-facing company or service. It functioned as a compiled targeting corpus, organizing business contact information by employer for outreach and marketing purposes. No attacker or specific breach method has been identified. The exposed data included names, email addresses, job titles, employers, work phone numbers, and physical addresses. This combination is particularly sensitive because it links identity to workplace role and contact details in a single record. That bundled profile is directly useful for crafting convincing phishing emails, impersonating colleagues or vendors, and building detailed maps of corporate org structures. No widely reported legal action or regulatory response is associated with this dataset. Because the records were compiled from third-party sources rather than stolen from a single organization, affected individuals may not receive any direct notification. People whose information appeared in this list face an elevated risk of targeted phishing, business email compromise attempts, and unsolicited contact from bad actors who can convincingly reference their employer, title, and workplace details.

Corporate contact databases aggregate business names, employee identities, job titles, emails, phone numbers, and company-linked records for sales and lead-generation use.

B2B USA Businesses did not have a normal corporate lifecycle because it was not a visible standalone business with a public operating identity. Since surfacing in 2017, it has been treated publicly as a legacy spam-list style breach object rather than as an active company that later changed hands, rebranded, or shut down.