[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$f3on62sfu08guy":3},{"success":4,"breach":5},true,{"_id":6,"name":7,"title":8,"slug":9,"domain":10,"breachDate":11,"addedDate":12,"modifiedDate":12,"contentUpdatedAt":13,"source":14,"sourceUrl":15,"sourceUrls":16,"pwnCount":18,"affectedCount":18,"affectedCountStatus":19,"affectedCountLowerBound":20,"affectedCountUnit":21,"hasEnglishDescription":4,"severity":22,"dataClasses":23,"description":28,"seoTitle":29,"seoTitleEn":30,"seoDescription":29,"seoDescriptionEn":31,"logoUrl":32,"isVerified":4,"isSensitive":33,"isSpamList":33,"isMalware":33,"company":34},"68e3266eda11adda488253e2","Twitter200M","Twitter (200M) Data Breach","twitter-200m","twitter.com","2021-01-01T00:00:00.000Z","2023-01-05T20:49:16.000Z","2026-07-19T00:00:01.291Z","Verified breach record","https:\u002F\u002Fwww.bleepingcomputer.com\u002Fnews\u002Fsecurity\u002F200-million-twitter-users-email-addresses-allegedly-leaked-online\u002F",[15,17],"https:\u002F\u002Fwww.wired.com\u002Fstory\u002Ftwitter-leak-200-million-user-email-addresses\u002F",211524284,"known",null,"unknown","Critical",[24,25,26,27],"Email addresses","Names","Social media profiles","Usernames","\u003Cp>The Twitter (200M) data breach is a large-scale social media data leak that occurred as a result of matching Twitter user profiles with email addresses in 2021 and was made accessible to the general public at the beginning of 2023. The incident is significant not because individual account passwords were compromised, but because email addresses were combined with publicly available profile information such as usernames, display names, and profile links. According to verified records, the number of unique affected accounts is listed as 211,524,284. The breach date should be considered January 1, 2021, and the date added to monitoring systems January 5, 2023. Therefore, it should be addressed on the account security screen with the actual breach period and date added information.\u003C\u002Fp>\u003Ch2>Leaked Data Types and Risks\u003C\u002Fh2>\u003Cp>In this incident, the verified data classes are email addresses, names, social media profile information, and usernames. Passwords, payment card information, private messages, session keys, or identity document data are not within the verified scope. Nevertheless, the risk should not be underestimated; because the link between an email address and a social media account can cause a loss of privacy, especially for individuals who use pseudonyms. Attackers can use these matches for phishing messages, targeted harassment, fake support notifications, reputation attacks, and account takeover attempts. The inclusion of a username and email address in the same table also facilitates brute force attacks using passwords leaked from other services. Therefore, even if the record does not contain passwords, it poses a high-impact social engineering risk in terms of account security.\u003C\u002Fp>\u003Ch2>Verified Scope and Boundaries\u003C\u002Fh2>\u003Cp>The Twitter (200M) record does not mean that all internal systems of the social media service were completely compromised. The obtained dataset has been associated with the exploitation of a technical weakness that allowed account matching from email or phone information during the 2021 period. Later, after filtering out duplicate lines, a dataset containing approximately 211.5 million unique email addresses circulated. Verified data fields are limited, and it is important to adhere to these limitations: email addresses, names, social media profile information, and usernames. Additional fields such as phone numbers, passwords, or private messages are not included in the verified main scope for this specific 200 million dataset. Therefore, the record should clearly communicate risk to the user, but it should not present unverified claims as definite information.\u003C\u002Fp>\u003Ch2>User Groups at Risk\u003C\u002Fh2>\u003Cp>The highest risk applies to people who do not want to directly link their Twitter account with their real identity, journalists, activists, public officials, users with high follower counts, brand representatives, and those visible in crypto asset communities. The connection between an email address and a profile can increase the credibility of personalized messages such as fake login alerts, copyright notices, brand collaboration offers, or support requests. For people using the same email address on different platforms, the risk grows even more; an attacker can match this address with past password leaks to launch account attempts. In teams managing corporate accounts, linking employee emails with social media roles creates an additional attack surface for messages that appear to be sent on behalf of the company and for account recovery attempts.\u003C\u002Fp>\u003Ch2>Urgent Measures to Be Taken\u003C\u002Fh2>\u003Cp>Even if there is no password-verified data field in this leak, affected users should immediately review their social media and email accounts used with the same email address. A unique and strong password should be chosen for the Twitter account, and if the same password has been used elsewhere, it should be changed on all related services. Multi-step verification should be enabled, and if possible, an authentication app or security key should be preferred. Account recovery emails, phone numbers, and linked apps should be checked; unrecognized sessions should be closed. Caution should be exercised with Twitter, brand, advertising, verification, or support-themed messages in the email inbox; addresses and senders should be verified before clicking on links.Access permissions for corporate accounts should be reduced, the use of shared passwords should be terminated, and session security in social media management tools should be rechecked.\u003C\u002Fp>\u003Ch2>Long-Term Security Strategies\u003C\u002Fh2>\u003Cp>In the long term, the most effective defense is to separate email usage according to purpose and use a unique password for each service. Using a dedicated email address for social media accounts can reduce the association of personal or work emails with public profiles. Using a password manager eliminates repeated passwords and provides strong protection against credential stuffing attacks. Account privacy settings should be reviewed regularly, and unnecessary personal information should not be left in public profile fields. For users with high visibility, pseudonyms, contact addresses, and recovery information should be kept separate. Institutions should establish separate account policies for social media managers, mandatory multi-step verification, access log review, and post-incident notification procedures.\u003C\u002Fp>\u003Ch2>Record Control and User Action\u003C\u002Fh2>\u003Cp>When this leak appears on LeakData, it is understood that the user's email address is included in the Twitter (200M) dataset. This result does not directly prove that the password has been compromised; however, the email address matching a social media profile increases the risk of targeted fraud and phishing. The user should first check the security settings of their Twitter account and then investigate password reuse on important accounts created with the same email address. In particular, email accounts, financial services, cloud storage, shopping accounts, and admin panels should be prioritized. The notification date should not be confused with the breach date: the main period of the incident is 2021, and the verified addition date is 2023. This distinction is important for the user to understand the risk timeline correctly and make decisions based on the actual incident time without falling into the current period misconception.\u003C\u002Fp>","","Twitter (200M) Data Breach (211.5 Million Reported Records)","Twitter (200M) Data Breach. 211.5 Million reported records were reported. Reported data: Email addresses, Names, Social media profiles. Review the scope…","\u002Fuploads\u002Flogo\u002Ftwitter_com.webp",false,{"name":35,"sector":36,"country":37,"website":10,"websiteArchiveUrl":29,"websiteStatus":29,"websiteCheckedAt":20},"Twitter","Social media","United States"]