[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$f3m0ey3z69qqyc":3},{"success":4,"breach":5},true,{"_id":6,"name":7,"title":8,"slug":7,"domain":9,"breachDate":10,"addedDate":11,"publishedAt":12,"modifiedDate":13,"contentUpdatedAt":14,"source":15,"sourceUrl":16,"sourceUrls":17,"pwnCount":18,"affectedCount":18,"affectedCountStatus":19,"affectedCountLowerBound":12,"affectedCountUnit":20,"hasEnglishDescription":4,"contentLocale":21,"availableLocales":22,"translations":24,"severity":27,"dataClasses":28,"description":31,"seoTitle":32,"seoDescription":33,"logoUrl":34,"isVerified":35,"isSensitive":4,"isSpamList":35,"isMalware":35,"company":36},"6a45a76be9734c4ec7ce5f4b","service-tax-online","Service Tax Online Alleged Data Exposure","servicetaxonline.com","2017-11-01T00:00:00.000Z","2026-07-01T23:48:58.775Z",null,"2026-09-17T16:27:41.515Z","2026-07-19T00:06:52.264Z","Third party breach","https:\u002F\u002Fleakedsource.com\u002F",[16],58948,"known","email_identifiers","en",[21,23],"tr",{"en":25,"tr":26},{"slug":7},{"slug":7},"Medium",[29,30],"Email addresses","Passwords","\u003Cp>The Service Tax Online data breach is a security incident dated November 2017, examined in the context of the tax compliance and online business services site associated with the domain servicetaxonline.com. This record has been kept as a single incident affecting \u003Cstrong>58,948\u003C\u002Fstrong> accounts according to the directly supported disclosed record. The leaked data classes are limited to email addresses and plaintext passwords; additional fields that are independently unsupported or appear contradictory have not been added to this record to avoid misleading the user.\u003C\u002Fp>\n\u003Ch2>Leaking Data Types and Risks\u003C\u002Fh2>\n\u003Cp>While preparing the Service Tax Online registration, similar records in the existing records, previous incidents seen with the same domain name, the number of records, incident date, data classes, domain status, and brand context were checked together. This approach makes individual incidents visible while reducing the risk of adding the same dataset twice. Although the domain responded in a protected manner, the registration was marked as retired because the open records platform indicated that it is no longer active.\u003C\u002Fp>\n\u003Cp>While 59,206 rows appeared on the target list, directly supported open records supported 58,948 records. Therefore, the value on the target list was not automatically copied in this record; directly supported numbers and data fields were used. Differences in data breach catalogs are common, because some lists are based on the total number of rows, some on unique users, and some on cleaned records.\u003C\u002Fp>\n\u003Cp>The main risk of this incident is the presence of plain text password information along with identifiers. If the password was used in the same or a similar form on other services, attackers can prepare automated login attempts, account takeover attempts, and targeted phishing messages. This risk continues regardless of whether the breached site is currently active or not.\u003C\u002Fp>\n\u003Ch2>Verified Scope and Boundaries\u003C\u002Fh2>\n\u003Cp>This registration is particularly important for users who have opened an online account for tax, registration, compliance, or business services. Even if it appears to be an old account, a forgotten forum profile, or a one-time registration, fields such as email address, username, phone number, IP address, or date of birth are permanent identifiers. This information can be matched with other data sets even years later.\u003C\u002Fp>\n\u003Cp>In the context of Service Tax Online, users seeking business or tax services using the same email address in official applications can make fake compliance and payment messages more convincing. Therefore, the impact of the incident is not limited to account security on just one website. Games, social media, business, e-commerce, or messaging accounts used with the same email address can also be indirectly at risk.\u003C\u002Fp>\n\u003Ch2>User Groups at Risk\u003C\u002Fh2>\n\u003Cp>Email addresses are one of the easiest types of data for attackers to exploit. When combined with a password, full name, or username, these addresses can be used in bulk login attempts and convincing-looking emails. Users should especially review old password patterns and other services where they registered with the same address.\u003C\u002Fp>\n\u003Cp>Service Tax Online registration has been critically addressed due to the password field. When a plain text password is found, even a strong-looking but reused password is considered weak. Users should create unique passwords for each platform, not reuse old passwords with minor changes, and store random values with a password manager.\u003C\u002Fp>\n\u003Cp>In cases where there is a username or nickname, the risk of linking increases. If the same username is repeated in game, forum, social media, or marketplace accounts, attackers can track the digital identity across different platforms. Therefore, the username should only be seen as visible profile information.\u003C\u002Fp>\n\u003Cp>The risk expands even further in records where the IP address or session trace is supported. IP information can provide clues about rough location, connection provider, or session habits. These fields may not seem as sensitive as an identity document; however, when combined with other information, they can make social engineering attacks more effective.\u003C\u002Fp>\n\u003Cp>If there is permanent information such as phone number, date of birth, full name, or address, users should not only settle for changing their password. This information can be used in password reset attempts, fake support calls, shipping and payment-themed scams, or in guessing authentication questions.\u003C\u002Fp>\n\u003Cp>On business and tax-focused sites, email security, password storage, and domain reputation are particularly important because user data is linked to expectations of official procedures. On the corporate side, such incidents demonstrate the long-term impact of old forum engines, weak password storage methods, uncontrolled plugins, unnecessary data collection, and insufficient monitoring processes. When a database leak occurs, the damage can continue for years.\u003C\u002Fp>\n\u003Cp>In the first step, users should identify their old accounts associated with Service Tax Online or servicetaxonline.com and the passwords that may have been used in these accounts. The password should be changed on all services where the same password is used, sessions should be closed on critical accounts, and unknown devices should be removed.\u003C\u002Fp>\n\u003Cp>The second step is to enable two-factor authentication. App-based authentication or a security key is more resilient compared to SMS. Email accounts, password managers, financial services, gaming accounts, and social media profiles should be prioritized in particular.\u003C\u002Fp>\n\u003Cp>The third step is to check the security settings of the email account. Forwarding rules, recovery addresses, connected apps, app passwords, and active sessions should be reviewed. Even if attackers cannot directly access the account after a data breach, they may target password reset messages.\u003C\u002Fp>\n\u003Cp>The fourth step is to be cautious against phishing and fake support messages. Messages containing an old username, phone number, or interest may appear more trustworthy. Users should go to the service using the address they typed themselves instead of clicking on links and should not open file attachments without verifying them.\u003C\u002Fp>\n\u003Ch2>Urgent Measures to Be Taken\u003C\u002Fh2>\n\u003Cp>The fifth step is to permanently abandon password repetition. The most dangerous consequence of a data leak is the reuse of the same password elsewhere. When a unique password, two-factor authentication, and regular security alerts are used together, the subsequent impact of a past leak is significantly reduced.\u003C\u002Fp>\n\u003Cp>For site owners, this record shows that the quality of password storage directly affects user security. Plain text passwords or hashes that can be quickly cracked increase the risk of account takeover the moment the database is exposed. Modern, slow, and salted password derivation methods should be standard.\u003C\u002Fp>\n\u003Cp>Access control is equally important. The admin panel, backup files, export tools, test environments, and old plugins are the most frequently neglected areas. Every component containing user data should operate with limited permissions, accesses should be logged, and alarms should be generated for unusual queries.\u003C\u002Fp>\n\u003Cp>On the incident response side, institutions need to be able to quickly determine which data is affected. If password reset, user notification, vulnerability patching, evidence preservation, and connected component checks are not pre-planned, the post-breach process is prolonged and user trust is further damaged.\u003C\u002Fp>\n\u003Cp>This record should not be considered to have a low privacy impact. In particular, the same email address or pseudonym may have been used on different platforms in contexts such as business and tax compliance processes. Keeping users' work and personal accounts separate from forum and entertainment accounts reduces long-term risk.\u003C\u002Fp>\n\u003Cp>It is possible for the same event to appear in different lists with different names or numbers. The Service Tax Online record was deduplicated based on the actual domain name, directly supported event date, record number, and data classes. Duplicate rows representing the same data set were not expanded; existing verified records were preserved.\u003C\u002Fp>\n\u003Ch2>Long-Term Security Strategies\u003C\u002Fh2>\n\u003Cp>This page has been prepared to provide clear and factual information under different names such as Service Tax Online data breach, servicetaxonline.com data leak, Service Tax Online password leak, and Service Tax Online user data. The text highlights only verified areas and applicable security steps.\u003C\u002Fp>\n\u003Cp>When users see this record, they should first check which email address they used to register in the past, where they have used the same password, and whether their account recovery information is up to date. The most common reason an old leak causes damage today is the continued reuse of passwords.\u003C\u002Fp>\n\u003Cp>The lesson to be learned for institutions is data minimization. Only information that is truly necessary should be requested from the user, old accounts should be cleaned with reasonable policies, unnecessary profile fields should not be kept, and sensitive data should be stored with separate layers of protection. Data that is not collected does not leak.\u003C\u002Fp>\n\u003Cp>In this record, instead of amplifying higher but conflicting claims, it was limited to directly supported details. This approach is critical for the reliability of data breach pages. It is a more correct approach to keep clear which areas are supported rather than presenting false certainty to the user.\u003C\u002Fp>\n\u003Cp>The practical checklist on the user side for Service Tax Online consists of three parts: finding the old password, closing or changing accounts where the same password is used, and enabling login notifications. Although these steps seem simple, they are the most effective measures to reduce the actual damage after a data breach.\u003C\u002Fp>\n\u003Cp>Since data types are kept limited in Service Tax Online registration, the text does not behave as if there are more fields. Nevertheless, the email and password combination alone is high risk. Even if users cannot access their old accounts, they need to update other services where they use the same password.\u003C\u002Fp>\n\u003Cp>Security teams should not only look at the affected website when evaluating this record. If there are employees registered with corporate domain names, login attempts based on password reuse, email security alerts, and risky sign-in signals should be handled as a separate monitoring rule.\u003C\u002Fp>\n\u003Ch2>Record Control and User Action\u003C\u002Fh2>\n\u003Cp>This incident also shows why old and closed platforms should not be forgotten. A service may have shut down or its domain name may have changed; however, the email, password, phone, or profile information that users shared in the past can continue to circulate in other environments. Security assessment should not be limited to the current access status.\u003C\u002Fp>\n\u003Cp>As a result, the Service Tax Online data breach is a significant security incident in November 2017 that affected 58,948 accounts and included fields containing email addresses and plain text passwords. Users are advised to make their passwords unique, use two-step verification, be cautious of suspicious messages, and regularly check login history on critical accounts.\u003C\u002Fp>","Service Tax Online Alleged Data Exposure (58.9 Thousand Email Identifiers)","Service Tax Online Alleged Data Exposure. 58.9 Thousand email identifiers are reported. Reported data: Email addresses, Passwords. Review the scope, risks…","\u002Fuploads\u002Flogo\u002Fservice-tax-online.svg",false,{"name":37,"sector":38,"country":39,"website":9,"websiteArchiveUrl":40,"websiteStatus":40,"websiteCheckedAt":12},"Service Tax Online","Tax Compliance \u002F Business Services","India",""]