B2B USA Businesses Data Breach (2017)
In mid-2017, a spam list of over 105 million individuals in corporate America was discovered online. Referred to as "B2B USA Businesses", the list categorised email addresses by employer, providing information on individuals' job titles plus their work phone numbers and physical addresses. Read more about spam lists in HIBP.
Related breaches
Match Group (Tinder, Hinge, OkCupid) Data Breach — January 2026
ShinyHunters claimed responsibility for stealing over 10 million Match Group user records in early 2…
Crunchbase Massive Personal Records Leak — January 2026
ShinyHunters exfiltrated approximately 2 million records from the business-intelligence platform Cru…
149 Million Credential Mega-Exposure — January 2026
Security researchers discovered a publicly exposed 96 GB database with 149 million unique logins cov…
A breach leaks your credentials. Then hackers chain those credentials to your address, family, phone, and employer using public broker sites. We’re the only tool built around that chain.
⚠ Were you in this breach?
Free email scanner. We check your address against 15.4B+ leaked records in 15 seconds — then show you the $19 cleanup that removes you from the broker sites aggregating leaked data.
Check my email — free →