[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fz7v5axd4tgx0":3},{"success":4,"breach":5},true,{"_id":6,"name":7,"title":8,"slug":9,"domain":10,"breachDate":11,"addedDate":12,"modifiedDate":13,"contentUpdatedAt":14,"source":15,"sourceUrl":16,"sourceUrls":17,"pwnCount":20,"affectedCount":20,"affectedCountStatus":21,"affectedCountLowerBound":22,"affectedCountUnit":23,"hasEnglishDescription":4,"severity":24,"dataClasses":25,"description":29,"seoTitle":10,"seoTitleEn":30,"seoDescription":10,"seoDescriptionEn":31,"logoUrl":32,"isVerified":4,"isSensitive":33,"isSpamList":33,"isMalware":33,"company":34},"68e3266eda11adda48825155","Combolists Posted to Telegram","Combolists Posted to Telegram Data Breach","combolists-posted-to-telegram","","2024-05-28T00:00:00.000Z","2024-06-03T19:10:03.000Z","2024-06-11T07:01:09.000Z","2026-07-18T23:49:19.862Z","Verified breach record","https:\u002F\u002Fwww.troyhunt.com\u002Ftelegram-combolists-and-361m-email-addresses\u002F",[16,18,19],"https:\u002F\u002Fwww.helpnetsecurity.com\u002F2024\u002F06\u002F04\u002Fcheck-account-credentials-compromised\u002F","https:\u002F\u002Fnotify.its.queensu.ca\u002Fnotification\u002Fview\u002F9027",361468099,"known",null,"unknown","Critical",[26,27,28],"Email addresses","Passwords","Usernames","\u003Cp>The \u003Cstrong>Combolists Posted to Telegram data breach\u003C\u002Fstrong> dated May 28, 2024, is a verified data set compiled from large collections of credentials shared on malicious Telegram channels. The incident identified 361,468,099 unique email addresses. The total data volume is reported to be approximately 122 GB, with around 1,700 files and about 2 billion lines. This incident is not a direct customer account breach of a single company; it is a large collection of credentials formed by combining different combolist sources and outputs from credential-stealing malware.\u003C\u002Fp>\n\u003Ch2>Leaking Data Types and Risks\u003C\u002Fh2>\n\u003Cp>\u003Cstrong>Combolists Posted to Telegram\u003C\u002Fstrong> include verified data classes such as email addresses, usernames, and passwords. When these three fields are combined, the risk of account takeover becomes serious. The email address or username indicates which identity credential the attacker will attempt; the password, if used in the same or similar form on other services, directly provides a basis for login attempts. Therefore, the result should be treated not as an ordinary spam alert, but as a high-priority password security warning.\u003C\u002Fp>\n\u003Cp>This dataset does not include names, phone numbers, physical addresses, payment cards, or official ID numbers as verified data classes. The central risk lies in the authentication information. Since some rows may contain information about the website where the password was entered, attackers can more easily understand which service to attempt. However, on the user's screen, it may not always be shown which password matches which site. This uncertainty requires treating all repeated passwords as risky.\u003C\u002Fp>\n\u003Cp>Combolist sources often consist of old data breaches, repackaged lists, guessed weak passwords, or logs from malware that steals information. Therefore, the same email address may appear with multiple passwords used on different services in the past. Even if a user uses a strong password today, the risk continues if an old password is still valid on other accounts. For organizations, the appearance of employee emails on such lists can increase targeted account guessing attacks and phishing traffic.\u003C\u002Fp>\n\u003Ch2>Verified Scope and Boundaries\u003C\u002Fh2>\n\u003Cp>Verified scope; collection dated May 28, 2024, record addition time dated June 3, 2024, last update time dated June 11, 2024, 361,468,099 unique accounts and email addresses, passwords, usernames are data classes. The incident does not indicate that Telegram service systems have been breached. A more accurate assessment is that it is the classification of lists of credentials shared on malicious Telegram channels collected and verified as a dataset.\u003C\u002Fp>\n\u003Cp>This distinction is important for user security. A match result does not mean that the user's Telegram account has been compromised. The user's email address, username, or password may have appeared on lists from different sources, and these lists may have been distributed on Telegram channels. Therefore, action should cover all important accounts where the same email and password may have been used, rather than focusing on a specific social messaging account.\u003C\u002Fp>\n\u003Cp>The number of raw rows should not be confused with the number of unique accounts. Within approximately 2 billion rows, it is possible for the same email address to appear again with different passwords or from different sources. The affected account number shown to the user is the verified value at the unique email address level. Unverified fields should not be added to data classes, the incident should not be presented as a single brand breach, and the scope should be kept narrow in the context of credential collection.\u003C\u002Fp>\n\u003Ch2>User Groups at Risk\u003C\u002Fh2>\n\u003Cp>The highest risk group consists of people who use the same password across multiple services. If a password has been used on an old forum, game account, shopping site, or trial account and is later reused on email, social media, financial, or work accounts, this data set can provide attackers with a ready-to-use trial list. Even if a password is long, the risk continues if it is not unique. Therefore, a unique password must be mandatory for all critical accounts.\u003C\u002Fp>\n\u003Cp>The second risk group consists of employees who open accounts on personal services with their corporate email addresses. If an employee's corporate address and password appear in a combolist, it does not prove that the company's systems have been compromised; however, it gives attackers an opportunity to test the company's domain. Accounts of administrators, finance, human resources, support, and technical teams should be prioritized for assessment. Organizations should closely monitor failed login attempts, unusual locations, and new device sessions.\u003C\u002Fp>\n\u003Cp>The third risk group consists of users whose devices may have previously run malware that steals information. If such a source exists, simply changing the password may not be sufficient. Passwords stored in the browser, session cookies, and form records may also be at risk. Users should scan their devices with reliable security software, remove unknown browser extensions, close open sessions, and use a security key or strong two-factor authentication for critical accounts.\u003C\u002Fp>\n\u003Ch2>Urgent Measures to Be Taken\u003C\u002Fh2>\n\u003Cp>Users in areas with positive matches should start by changing the passwords on their email accounts and then apply password changes across all critical accounts. Identical or similar passwords should be completely avoided, and a unique and long password should be chosen for each service. Using a password manager makes this process reliable. Adding a number to the end of an old password or making a small letter change is not sufficient; attackers can easily try these variations.\u003C\u002Fp>\n\u003Cp>The second step is to enable multi-factor authentication. App-based authentication or a hardware security key provides stronger protection than just an SMS code. In account settings, open sessions, unrecognized devices, newly added recovery emails, forwarding rules, and recent login activities should be checked. Suspicious sessions should be closed, recovery information should be updated, and security notifications should be kept turned on.\u003C\u002Fp>\n\u003Cp>The third step is to check device security. Due to the possibility of malware that steals information, users should update their computers and phones, remove unknown applications, review browser extensions, and run a trusted security scan. If a work account, financial account, or primary email account was used on the same device, session clearing and access control should also be applied to these accounts.\u003C\u002Fp>\n\u003Ch2>Long-Term Security Strategies\u003C\u002Fh2>\n\u003Cp>In the long term, the most effective defense is a unique password pattern and strong two-factor authentication. When a separate password is used for each service, credentials seen in a combolist cannot spread to other accounts. Users should generate random passwords with a password manager, close old accounts, end sessions on unused services, and make regular leak checks a habit.\u003C\u002Fp>\n\u003Cp>A permanent strategy for institutions is to monitor the visibility of employee emails in external credential collections and prioritize the results according to risk level. Security keys, mandatory multi-factor authentication, risk-based login controls, and leaked password blocking rules should be used together for high-privilege accounts. Password reset requests in help desk processes should be confirmed with strong authentication.\u003C\u002Fp>\n\u003Cp>This incident also shows that device hygiene is as important as password security. Users should not delay operating system and browser updates, avoid pirated software and unknown plugins, and use their main email account only on trusted devices. Because malware that steals information can target not only passwords but also active sessions, regular session cleaning and monitoring security notifications are part of long-term defense.\u003C\u002Fp>\n\u003Ch2>Record Control and User Action\u003C\u002Fh2>\n\u003Cp>If your email address appears in \u003Cstrong>Combolists Posted to Telegram data breach\u003C\u002Fstrong>, do not interpret this as a direct breach of a specific service. A more accurate assessment is that your email address, username, or password may have been included in a large collection of credentials shared through malicious channels. The primary goal is to find out if the same password is used on other accounts and to quickly remove repeated passwords.\u003C\u002Fp>\n\u003Cp>If the control result matches, email accounts, financial accounts, social media, work tools, and cloud services should be reviewed as a priority. Unique passwords, multi-factor authentication, session control, and device security steps should be applied to all critical accounts. For corporate addresses, domain-based monitoring makes it easier to prioritize risky employee accounts. Regular checks help to detect early the risk arising from old combolists being reused in new account testing attacks.\u003C\u002Fp>","Combolists Posted to Telegram Data Breach (361.5 Million Reported Records)","Combolists Posted to Telegram Data Breach. 361.5 Million reported records were reported. Reported data: Email addresses, Passwords, Usernames. Review the…","\u002Fuploads\u002Flogo\u002Ftelegram_combolists.webp",false,{"name":7,"sector":35,"country":10,"website":10,"websiteArchiveUrl":10,"websiteStatus":10,"websiteCheckedAt":22},"Credential Collection"]