[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$f1exkjp238wzi7":3},{"success":4,"breach":5},true,{"_id":6,"name":7,"title":8,"slug":9,"domain":10,"breachDate":11,"addedDate":12,"modifiedDate":13,"contentUpdatedAt":13,"source":14,"sourceUrl":15,"sourceUrls":16,"pwnCount":19,"affectedCount":19,"affectedCountStatus":20,"affectedCountLowerBound":21,"affectedCountUnit":22,"hasEnglishDescription":4,"severity":23,"dataClasses":24,"description":31,"seoTitle":32,"seoTitleEn":33,"seoDescription":32,"seoDescriptionEn":34,"logoUrl":35,"isVerified":4,"isSensitive":36,"isSpamList":4,"isMalware":36,"company":37},"68e3266eda11adda488252d8","NetProspex","NetProspex Spam Data List","netprospex","netprospex.com","2016-09-01T00:00:00.000Z","2017-03-15T01:57:04.000Z","2026-07-29T11:40:53.262Z","Verified breach record","https:\u002F\u002Fwww.troyhunt.com\u002Fweve-lost-control-of-our-personal-data-including-33m-netprospex-records\u002F",[15,17,18],"https:\u002F\u002Fwww.ciodive.com\u002Fnews\u002F337m-records-leaked-from-us-commercial-database\u002F438209\u002F","https:\u002F\u002Fwww.ecommercetimes.com\u002Fstory\u002Fdun-bradstreet-marketing-database-exposed-84387.html",33698126,"known",null,"email_identifiers","Critical",[25,26,27,28,29,30],"Email addresses","Employers","Job titles","Names","Phone numbers","Physical addresses","\u003Cp>The NetProspex data breach is associated with the 2016 online leak of a large business directory list containing corporate communication and marketing data. The verified query set includes 33,698,126 individuals. The dataset focuses on business identities and contact information rather than consumer account passwords: email addresses, employers, job titles, names, phone numbers, and physical addresses. Therefore, the risk is concentrated more on targeted phishing, internal role impersonation, sales fraud, and trust exploitation via business email rather than classic account password breaches.\u003C\u002Fp>\n\u003Ch2>Leaking Data Types and Risks\u003C\u002Fh2>\n\u003Cp>The fields verified in the NetProspex leak are email addresses, employer information, job titles, names, phone numbers, and physical addresses. Even if these fields do not contain passwords by themselves, they are very valuable for corporate identity. When a person's name, company, position, and contact information are found together, attackers can prepare credible-looking sales messages, executive impersonation requests, fake meeting invitations, or supplier correspondence.\u003C\u002Fp>\n\u003Cp>The marketing list nature of the data set is particularly important. While such lists are used for large-scale email campaigns, if misused, they can also be used for targeted phishing and role-based attacks. Records with job titles make it easier to identify high-impact targets such as finance, human resources, information technology, procurement, and management roles. For individuals with phone and address information, the risk of social engineering via calls and mail-based fraud also increases.\u003C\u002Fp>\n\u003Ch2>Verified Scope and Boundaries\u003C\u002Fh2>\n\u003Cp>The violation date is tracked as September 2016. The verified account set contains 33,698,126 unique individual records. The incident is related to the online leakage of business person's data, predominantly from corporate America, and it has been indicated that marketing data obtained through a commercial data provider may have been lost from a third-party customer environment. This distinction is important; because the incident should be assessed not like an ordinary membership database breach, but rather as a case of business directory data going out of control.\u003C\u002Fp>\n\u003Cp>The data classes on this page are limited to verifiable key fields: email addresses, employers, job titles, names, phone numbers, and physical addresses. Fields such as passwords, payment cards, or ID numbers are not shown as key data classes for the NetProspex result. This way, the user focuses on real risks arising from business identity and contact information, rather than being misled into thinking the account has been compromised.\u003C\u002Fp>\n\u003Ch2>User Groups at Risk\u003C\u002Fh2>\n\u003Cp>Company employees, managers, public institution personnel, sales teams, finance units, human resources teams, and purchasing roles are at greater visible risk according to the NetProspex results. When work email, job title, and company name come together, attackers can target the person with messages appropriate to their role within the organization. This situation particularly strengthens attacks that carry the pretext of invoice approval, supplier change, meeting request, or file sharing.\u003C\u002Fp>\n\u003Cp>The risk is greater for individuals working in high-profile companies or public institutions. Knowledge of the corporate hierarchy and job titles helps understand who makes decisions on which matters. People with phone numbers can be targeted with fake support calls; those with physical addresses can be targeted under the pretense of mail, deliveries, or office visits. Even old work emails can remain valuable for external fraud, brand impersonation, and account reconnaissance attempts.\u003C\u002Fp>\n\u003Ch2>Urgent Measures to Be Taken\u003C\u002Fh2>\n\u003Cp>Users visible in the NetProspex results should take the risk of phishing, especially for work emails, seriously. Suspicious meeting invitations, invoice requests, supplier account change notifications, password reset messages, and file sharing links should be carefully examined. Even if the message appears to come from within the company, the sender's address, link domain, and the context of the request should be checked.\u003C\u002Fp>\n\u003Cp>Multi-factor authentication should be enabled on organization accounts, email security alerts should be kept on, and sensitive requests should be verified through a secondary channel. For support or payment requests received by phone, the caller should be verified independently of the corporate directory. On the personal side, third-party accounts opened with the same work email should be reviewed, unnecessary publicly available profile information should be reduced, and caution should be exercised against links from unknown email lists.\u003C\u002Fp>\n\u003Ch2>Long-Term Security Strategies\u003C\u002Fh2>\n\u003Cp>The NetProspex incident shows that marketing and business directory data can also pose serious security risks. Organizations should regularly review where employee email addresses, job titles, and phone information are published. Phishing training for purchasing, finance, and executive roles should be designed according to real business workflows; clear verification rules should exist for requests such as invoices, bank account changes, and sensitive document sharing.\u003C\u002Fp>\n\u003Cp>In the long term, email aliases, role-based mailboxes, incoming message filters, and domain verification controls should be used together. Corporate security teams should not consider business personal data leaks as lower priority than password leaks, because they can provide enough context for preparing targeted attacks. Users should also avoid keeping excessive details of business information on social networks and publicly accessible profiles.\u003C\u002Fp>\n\u003Ch2>Record Control and User Action\u003C\u002Fh2>\n\u003Cp>If a NetProspex result appears in the account security check, it means that the relevant email address is included in the verified business person dataset associated with the 2016 NetProspex data breach. This result does not indicate that your password has been compromised; however, it does indicate that you may be exposed to targeted messages with information such as your name, work email, company, position, phone number, or address.\u003C\u002Fp>\n\u003Cp>The first step is to check work email security settings and multi-factor authentication. Then, a habit of second verification should be established for suspicious invoices, file sharing, meetings, suppliers, or support requests. If there is an internal security team, the NetProspex result should be shared, and phishing alerts for the relevant email address should be reviewed. On the personal side, public business profiles should be simplified, and no actions should be initiated through links in unknown marketing messages.\u003C\u002Fp>","","NetProspex Spam Data List (33.7 Million Email Identifiers)","NetProspex Spam Data List. 33.7 Million email identifiers were reported. Reported data: Email addresses, Employers, Job titles. Review the scope, risks, and…","\u002Fuploads\u002Flogo\u002Fnetprospex_com.webp",false,{"name":7,"sector":38,"country":39,"website":40,"websiteArchiveUrl":32,"websiteStatus":41,"websiteCheckedAt":42},"Business contact data provider","United States","www.netprospex.com","reachable","2026-07-29T11:30:22.391Z"]