[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$frz54agabfp5u":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":33,"seoTitle":34,"seoTitleEn":35,"seoDescription":34,"seoDescriptionEn":36,"logoUrl":37,"isVerified":4,"isSensitive":4,"isSpamList":38,"isMalware":38,"company":39},"68e3266eda11adda4882540b","WeLeakInfo","WeLeakInfo Data Breach","weleakinfo","weleakinfo.com","2021-03-08T00:00:00.000Z","2021-03-15T22:48:25.000Z","2026-07-29T11:40:53.262Z","Verified breach record","https:\u002F\u002Fkrebsonsecurity.com\u002F2021\u002F03\u002Fweleakinfo-leaked-customer-payment-info\u002F",[15,17,18],"https:\u002F\u002Fwww.techradar.com\u002Fnews\u002Fhackers-leak-other-hackers-information-online","https:\u002F\u002Fwww.pandasecurity.com\u002Fen\u002Fmediacenter\u002F24000-weleakinfo-customers\u002F",11788,"known",null,"unknown","Medium",[25,26,27,28,29,30,31,32],"Browser user agent details","Email addresses","Employers","IP addresses","Names","Partial credit card data","Physical addresses","Purchases","\u003Cp>The WeLeakInfo data breach is a sensitive incident that emerged in March 2021 and concerns payment customers of the now-closed WeLeakInfo service. The scope of verified account searches is 11,788 unique records. The incident is limited to the service's own customer and payment-related data; it does not represent the entirety of billions of stolen identity records from other sites previously marketed by WeLeakInfo. Affected areas include browser user agent information, email addresses, employer or organization information, IP addresses, full names, partial credit card data, physical addresses, and purchase information. Passwords are not included in this verified data set.\u003C\u002Fp>\n\u003Ch2>Leaking Data Types and Risks\u003C\u002Fh2>\n\u003Cp>In this incident, fields that create identity links, such as email address, full name, physical address, and IP address, have emerged along with payment history and partial credit card data. Partial credit card data does not mean the full card number or all security details of the card; however, when combined with payment history, name, and address information, it increases the risk of social engineering and fraud. Browser user agent information can also provide additional clues about the device, browser, or operating system used.\u003C\u002Fp>\n\u003Cp>Due to the nature of the WeLeakInfo service, the risk is not limited to traditional identity theft. Individuals who purchase this service and are associated with the stolen data search service may face privacy, reputation, targeted pressure, and extortion attempts. The inclusion of employer or institution information can reveal workplace connections for people using corporate email. Therefore, the incident should be treated not as a low-numbered account list, but as a leakage associated with sensitive payment and identity information.\u003C\u002Fp>\n\u003Ch2>Verified Scope and Boundaries\u003C\u002Fh2>\n\u003Cp>The verified event date should be kept as March 8, 2021, and the verified listing date as March 15, 2021. The account search coverage is 11,788 unique records. Although news articles mention approximately 24,000 customers or broader payment archive figures, the matching coverage on LeakData is maintained based on unique email accounts. Unverified person counts, data fields, and threat-actor claims are not treated as part of the public incident scope.\u003C\u002Fp>\n\u003Cp>Verified data categories are browser user agent information, email addresses, employer or institution information, IP addresses, full name, partial credit card data, physical addresses, and purchase information. Passwords, password hashes, full credit card numbers, card security codes, bank account numbers, or official ID numbers should not be included among the verified account search fields for this incident. Although the WeLeakInfo service is a service that searches data obtained from other breaches, this incident is a data leak belonging to the service's own paying customers.\u003C\u002Fp>\n\u003Ch2>User Groups at Risk\u003C\u002Fh2>\n\u003Cp>The highest risk is for individuals who make payments through WeLeakInfo and use the same email address for work, personal accounts, or other sensitive services. When email, full name, physical address, and purchase information are combined, it can be inferred which service the person is associated with. This makes phishing messages more convincing and may lead to targeting based on the person's past payment behavior. For individuals using corporate domain emails, the visibility of the employer's information creates an additional reputational risk.\u003C\u002Fp>\n\u003Cp>Partial card data alone does not provide full financial access; however, details such as the last digits, payment date, or purchase amount can be used to support fraud. An attacker may try to convince a person that they are coming from the bank, payment processor, or a previous service. Physical addresses and IP addresses can become elements of pressure in identity verification questions or threat messages. Therefore, individuals in the positive match area should check both their financial transactions and email security.\u003C\u002Fp>\n\u003Ch2>Urgent Measures to Be Taken\u003C\u002Fh2>\n\u003Cp>The user who has a positive match should first check their email account for suspicious logins, unexpected password reset messages, foreign devices, and unknown forwarding rules. Payment card transactions should be examined, and if there are unexpected transactions or attempted authorizations, the card issuer should be contacted. Since only partial card data is exposed, it should not be assumed that full card information has been compromised; nevertheless, account statements and card notifications should be closely monitored for a while.\u003C\u002Fp>\n\u003Cp>Care should be taken against messages using the name WeLeakInfo, old payment information, address, or purchase history. The sender may exert pressure with titles such as card renewal, account closure, refund, evidence deletion, or legal threat. In such messages, links should not be clicked, attachments should not be opened, and payment requests should not be accepted. If a business email is used, it is appropriate to notify the organization's security team and check the multi-factor protection on the relevant accounts.\u003C\u002Fp>\n\u003Ch2>Long-Term Security Strategies\u003C\u002Fh2>\n\u003Cp>In the long term, for sensitive or high-risk services, a separate email address or an email masking solution should be preferred instead of a personal main email. In payment transactions, card notifications should be kept open, and tools like virtual cards or limited cards should be considered. The use of unique and long passwords for each account should be maintained, and the risk of repeated passwords should be reduced with a password manager. Even if there is no verified password in this incident, strong authentication is important for other services associated with the same email address.\u003C\u002Fp>\n\u003Cp>On the corporate side, employees registering for risky or sensitive external services with their work email should be minimized, and awareness training should be provided for leaks containing payment and purchase information. On the user side, old accounts should be reviewed regularly, unnecessary subscriptions should be closed, and data minimization should be preferred for services carrying payment history. In incidents involving physical addresses and corporate information, changing the password alone should not be considered sufficient; privacy, financial tracking, and identity theft risks should be addressed together.\u003C\u002Fp>\n\u003Ch2>Record Control and User Action\u003C\u002Fh2>\n\u003Cp>If the control result is positive, it means that the entered email address is found in the verified dataset related to WeLeakInfo payment customers. In this case, the email address, full name, IP address, physical address, browser user agent information, employer or institution information, partial credit card data, and purchase information should be considered at risk. If the result is negative, it is understood that no match is found in this particular dataset; this does not prove that the person has not been involved in other breaches.\u003C\u002Fp>\n\u003Cp>The appropriate actions for the user are to secure their email account, monitor payment card transactions, avoid responding to suspicious messages, inform the security officer within the organization if work email was used, and start using a separate email for sensitive services. The WeLeakInfo incident should be evaluated both from a financial and privacy perspective, as it shows that customers of the stolen data search service could also have their own payment and identity information at risk.\u003C\u002Fp>","","WeLeakInfo Data Breach (11.8 Thousand Reported Records)","WeLeakInfo Data Breach. 11.8 Thousand reported records were reported. Reported data: Browser user agent details, Email addresses, Employers. Review the scope…","\u002Fuploads\u002Flogo\u002Fweleakinfo_com.webp",false,{"name":7,"sector":40,"country":41,"website":10,"websiteArchiveUrl":42,"websiteStatus":43,"websiteCheckedAt":44},"Credential search service","Global","https:\u002F\u002Fweb.archive.org\u002Fweb\u002F20220719065244\u002Fhttps:\u002F\u002Fweleakinfo.com\u002F","archived","2026-07-29T11:30:22.391Z"]