Breach Intelligence

6,875

Total breached databases

In August 2014, China Campus Beauty Contest (中国校花大赛), a Chinese college beauty pageant website, allegedly suffered a data breach. Reports suggest approximately 4,000 participant and member records were exposed. The compromised data includes real names, email addresses, usernames, phone numbers, QQ numbers, schools, home locations, physical measurements, photos, and plaintext passwords.
  • Date: Aug 2014
  • Country: China
  • Category: Others
  • Data: Email Addresses Passwords Names Phone Numbers Geographic Locations Usernames Site Activity Social Profiles Education Physical Descriptions
  • Records: 4,031
  • Lines: 4,174
  • Size: 2.06 MB
  • Passwords: Plaintext
In December 2015, OuTao (欧淘网), a Chinese cross-border parcel-forwarding and international shipping service, allegedly suffered a data breach. Reports suggest approximately 8,500 user records were exposed. The compromised data includes email addresses, usernames, phone numbers, and passwords stored as MD5 hashes.
  • Date: Dec 2015
  • Country: China
  • Category: Logistics & Transportation
  • Data: Email Addresses Passwords Phone Numbers Geographic Locations Usernames Site Activity
  • Records: 8,453
  • Lines: 8,508
  • Size: 2.1 MB
  • Passwords: MD5
  • Cracked: 0%
Sometime around 2011, the Chinese gaming portal and community 766 (766.com / 766游戏网) allegedly suffered a data breach. The exposed data originated from the site's Discuz!/UCenter forum member database. Reports suggest approximately 120,000 records were exposed, including usernames, email addresses, registration IP addresses, account dates and passwords hashed as salted MD5.
  • Date: 2011
  • Domain: 766.com
  • Country: China
  • Category: Gaming
  • Data: Email Addresses Passwords Geographic Locations Usernames IP Addresses Site Activity
  • Records: 120,600
  • Lines: 120,605
  • Size: 19.54 MB
  • Passwords: MD5 Salted
  • Cracked: 0%
In 2016, an archive of the Chinese white-hat vulnerability-disclosure platform WooYun (乌云 / wooyun.org) was allegedly compiled and leaked, shortly after the platform was abruptly shut down. WooYun was one of China's best-known bug-reporting platforms connecting security researchers and vendors. The archive contains roughly 40,000 vulnerability reports and knowledge-base articles. Reports suggest the data exposed the handles of over 6,000 security researchers (report authors) along with several thousand email addresses referenced inside the report bodies.
  • Date: 2016
  • Domain: wooyun.org
  • Country: China
  • Category: Cybersecurity
  • Data: Email Addresses Geographic Locations Usernames
  • Records: 47,649
  • Lines: 41,562
  • Size: 1.93 GB
  • Passwords: No
Sometime before 2014, a dataset of Chinese enterprises registered with customs (海关) was allegedly compiled and exposed. Reports suggest the dataset contains approximately 810,000 records. The exposed data includes company names, registered business scope, addresses, and postal codes. No passwords were included.
  • Date: 2014
  • Country: China
  • Category: Government
  • Data: Geographic Locations Company Information
  • Records: 809,907
  • Lines: 809,948
  • Size: 317.4 MB
  • Passwords: No
In 2014, limian.com (立免网), a Chinese online membership and rewards platform, allegedly suffered a data breach. Reports suggest that the member database of approximately 1.2 million users was exposed. The compromised data included email addresses, real names, usernames, mobile phone numbers, home addresses, dates of birth, genders, QQ numbers, some national ID numbers, and bcrypt-hashed passwords.
  • Date: 2014
  • Domain: limian.com
  • Country: China
  • Category: E-commerce & Retail
  • Data: Email Addresses Passwords Names Phone Numbers Geographic Locations Usernames Government IDs Genders Site Activity Social Profiles Birthdates
  • Records: 1,182,811
  • Lines: 1,182,919
  • Size: 564.84 MB
  • Passwords: BCrypt
  • Cracked: 0%
Sometime around 2013, the Chinese DNS and web-hosting provider Sundns (阳光互联 / sundns.com) allegedly suffered a data breach. It has been reported that the data was extracted from the provider's account database via SQL injection. Reports suggest approximately 680,000 records were exposed, including email addresses, usernames and passwords hashed with md5crypt.
  • Date: 2013
  • Domain: sundns.com
  • Country: China
  • Category: Technology
  • Data: Email Addresses Passwords Geographic Locations Usernames
  • Records: 686,172
  • Lines: 687,276
  • Size: 73.33 MB
  • Passwords: MD5Crypt
  • Cracked: 0%

Frequently Asked Questions

A data breach is unauthorized access to data (often involving account takeover, malware, or misconfigured infrastructure). A data leak is exposure of data due to mistakes like public cloud storage, open databases, or accidental publishing. A database dump is a packaged dataset that may come from a breach, leak, scraping, or aggregation.

Change passwords for any affected accounts immediately, prioritizing email, banking, and any account that shares the same password. Enable multi-factor authentication wherever possible. Monitor your accounts for suspicious activity and consider placing a fraud alert or credit freeze if financial data was exposed.

Start with containment and verification: confirm what data was exposed, identify the entry point, rotate credentials (especially SSO, VPN, email), and enforce MFA. Then investigate affected systems, notify stakeholders as required, and harden controls to prevent recurrence. A structured incident response plan helps keep the work measurable and compliant.

Dark web monitoring helps you spot exposure signals early — before stolen data is widely reused for account takeover or targeted attacks. Monitoring complements vulnerability management by revealing when attackers already have leverage. Pair it with continuous attack surface monitoring and strong Asset Discovery to reduce blind spots.

Not always. Some datasets are old, incomplete, or derived from third parties. However, any exposure increases risk because credentials and personal data can be reused indefinitely. Treat it as a priority signal: rotate credentials, enforce MFA, review suspicious logins, and audit the systems that could have produced the data.

SynScan helps you connect the dots between attack surface exposure, vulnerabilities, and breach signals so you can prioritize remediation and reduce the chance of repeat incidents.