[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$f3r86lqc0x1v0o":3},{"success":4,"breach":5},true,{"_id":6,"name":7,"title":8,"slug":7,"domain":9,"breachDate":10,"addedDate":11,"modifiedDate":12,"contentUpdatedAt":12,"source":13,"sourceUrl":14,"sourceUrls":15,"pwnCount":18,"affectedCount":18,"affectedCountStatus":19,"affectedCountLowerBound":20,"affectedCountUnit":21,"hasEnglishDescription":4,"severity":22,"dataClasses":23,"description":31,"seoTitle":32,"seoTitleEn":33,"seoDescription":32,"seoDescriptionEn":34,"logoUrl":35,"isVerified":4,"isSensitive":4,"isSpamList":36,"isMalware":36,"company":37},"68e3266eda11adda4882511f","bookcrossing","BookCrossing Data Breach","bookcrossing.com","2012-11-05T00:00:00.000Z","2023-07-25T02:24:52.000Z","2026-07-27T16:11:12.278Z","Third party breach","https:\u002F\u002Fbreaches.sencode.co.uk\u002Fbreaches\u002Fbookcrossing",[14,16,17],"https:\u002F\u002Fwww.twingate.com\u002Fblog\u002Ftips\u002Fbookcrossing-data-breach","https:\u002F\u002Fwww.redpacketsecurity.com\u002Fbookcrossing-1-582-323-breached-accounts\u002F",1582323,"known",null,"unknown","Critical",[24,25,26,27,28,29,30],"Dates of birth","Email addresses","Geographic locations","IP addresses","Names","Passwords","Usernames","\u003Cp>The BookCrossing data breach is an account data leak originating from an old database backup belonging to the book social network known by the domain bookcrossing.com. The data of the incident dates back to November 2012; the later disclosed and verified impact is at the level of 1,582,323 accounts. This distinction is important: users should be aware that there is a time gap between the date they learned about the breach and the period to which the data belongs.\u003C\u002Fp>\n\u003Cp>BookCrossing has a community structure where users can record and share books and track the circulation of physical books. Therefore, the leaked data affects not only login security but also information that can be linked to users' real identity, location, and reading community profiles. It has been verified that the records include dates of birth, email addresses, geographic locations, IP addresses, names, usernames, and plain text passwords.\u003C\u002Fp>\n\u003Ch2>Leaked Data Types and Risks\u003C\u002Fh2>\n\u003Cp>The data categories confirmed in this breach are birth dates, email addresses, geographic locations, IP addresses, names, passwords, and usernames. While email addresses and usernames can be used for account matching, names and birth dates can make phishing messages more convincing. The geographic location and IP address fields can provide additional context about the user's general area or community activity.\u003C\u002Fp>\n\u003Cp>The most critical point is that passwords are stored in plain text. A plain text password means that an attacker can read the password without needing any cracking process. If the user has used the same password on other accounts, the risk is not limited to the BookCrossing account alone. Email accounts, social media, shopping accounts, forums, and other book communities should be quickly updated if they are protected with the same password or similar patterns.\u003C\u002Fp>\n\u003Ch2>Verified Scope and Boundaries\u003C\u002Fh2>\n\u003Cp>The verified scope for this record consists of 1,582,323 accounts and seven main data categories. The fields included in the scope are birth dates, email addresses, geographic locations, IP addresses, names, passwords, and usernames. Payment card, phone number, private message content, or government ID are not among the verified data categories for this record. The risk assessment provided to the user should not be extended beyond these boundaries.\u003C\u002Fp>\n\u003Cp>The fact that the breach is based on a 2012 database backup means that the affected passwords may be old; however, this does not eliminate the risk. Many users reuse old password patterns for years or maintain them with minor changes. Therefore, the age of the record is not a reason to postpone security action, especially in an incident where plain text passwords are involved.\u003C\u002Fp>\n\u003Ch2>User Groups at Risk\u003C\u002Fh2>\n\u003Cp>The highest risk group consists of people who have a BookCrossing account and use the same password on other accounts as well. In book communities, real names, city information, or long-used nicknames can facilitate profile matching. An email address combined with birth date and location information can be used to generate user-specific fake community notifications, book sharing invitations, or account security messages.\u003C\u002Fp>\n\u003Cp>Former members are also at risk. Even if the user has not used the account since 2012, the risk continues if they reused their password elsewhere during that period.\u003C\u002Fp>\n\u003Ch2>Urgent Measures to Be Taken\u003C\u002Fh2>\n\u003Cp>Users who see a match should identify the password they use on their BookCrossing account and other accounts where the same password pattern is repeated. Due to the risk of plaintext passwords, this password should no longer be used anywhere. A unique and long password should be created for each account, prioritizing email accounts, social media, shopping, cloud storage, and work accounts. Using a password manager makes this process more reliable.\u003C\u002Fp>\n\u003Cp>Users should be prepared for more personalized phishing messages due to personal fields such as date of birth, name, and location. Instead of logging in through incoming links, one should go directly to the relevant service, unexpected attachments should not be opened, and account recovery information should be updated. Two-factor authentication should be enabled on critical accounts, and different variations of old passwords should not be used.\u003C\u002Fp>\n\u003Ch2>Long-Term Security Strategies\u003C\u002Fh2>\n\u003Cp>The BookCrossing phenomenon shows that community and hobby sites can also create strong personal data profiles. Users should regularly review the information they share in book, forum, game, and interest communities, such as their name, city, date of birth, and username. Accounts that are no longer in use should be closed, unique passwords should be used on accounts that cannot be closed, and public profile information should be stripped of unnecessary details.\u003C\u002Fp>\n\u003Cp>This incident reminds institutions and community managers that old backups need to be protected as much as current systems. If database backups are stored for a long time, access control, encryption, retention period, and deletion processes should be clearly managed. On the user side, leaked password checks, multi-factor authentication, and old account cleanup should become a permanent security habit.\u003C\u002Fp>\n\u003Ch2>Record Control and User Action\u003C\u002Fh2>\n\u003Cp>The user should first determine which password was used for this account, and then check whether the same password or similar variations are still being used on other accounts. The match should be treated as high priority, especially due to the plain text password.\u003C\u002Fp>\n\u003Cp>Even if the password is not remembered, old password patterns used in 2012 and earlier should be considered risky. Users should use unique passwords, enable two-step verification, be cautious of fake messages containing personal information, and close community accounts they no longer use. These steps significantly reduce the risks of account takeover, phishing, and profile matching that may arise from a BookCrossing breach.\u003C\u002Fp>","","BookCrossing Data Breach (1.6 Million Reported Records)","BookCrossing Data Breach. 1.6 Million reported records were reported. Reported data: Dates of birth, Email addresses, Geographic locations. Review the scope…","\u002Fuploads\u002Flogo\u002Fbookcrossing_com.webp",false,{"name":38,"sector":39,"country":40,"website":9,"websiteArchiveUrl":32,"websiteStatus":32,"websiteCheckedAt":20},"BookCrossing","Book social networking","United States"]