Breach Intelligence

6,875

Total breached databases

In December 2011, China's largest online forum known as Tianya was hacked and tens of millions of accounts were obtained by the attacker. The leaked data included names, usernames and email addresses.
  • Data: Email Addresses Names Usernames
  • Records: 31,250,468
  • Lines: 31,250,553
  • Size: 1.14 GB
  • Passwords: No
In approximately 2011, it's alleged that the Chinese gaming site known as 7k7k suffered a data breach that impacted 9.1 million subscribers. Whilst there is evidence that the data is legitimate, due to the difficulty of emphatically verifying the Chinese breach it has been flagged as "unverified". The data in the breach contains usernames, email addresses and plain text passwords.
  • Data: Email Addresses Passwords Usernames
  • Records: 14,908,857
  • Lines: 14,928,048
  • Size: 358.02 MB
  • Passwords: Plaintext
Sometime in 2020, the Chinese website QQ suffered a data breach (Or was scraped). The attack led to the exposure of data including QQ Identifiers (User IDs) and Phone Numbers. In total, 719 million users were affected.
  • Data: Phone Numbers Social Profiles
  • Records: 719,806,830
  • Lines: 719,806,832
  • Size: 17.91 GB
  • Passwords: No
In September 2020, one of the top courier companies in China known as SF Express (ShunFeng) allegedly suffered a data breach that impacted 65.9 million users. The breach led to the exposure of data including Full names, Phone numbers and Physical addresses.
  • Data: Names Phone Numbers Physical Locations
  • Records: 65,990,340
  • Lines: 65,990,341
  • Size: 3.3 GB
  • Passwords: No
In approximately 2012, it's alleged that the Chinese shopping site known as Taobao suffered a data breach that impacted over 21 million subscribers. Whilst there is evidence that the data is legitimate, due to the difficulty of emphatically verifying the Chinese breach it has been flagged as "unverified". The data in the breach contains email addresses and plain text passwords.
  • Data: Email Addresses Passwords
  • Records: 14,977,923
  • Lines: 14,979,982
  • Size: 459.36 MB
  • Passwords: Plaintext
In October 2015, NetEase, a Chinese Internet technology company known for providing online games, email services, advertising, and e-commerce platforms, reportedly suffered a data breach. The breach is said to have impacted approximately 288 million subscribers. Among the compromised data were email addresses and plain text passwords.
  • Data: Email Addresses Passwords
  • Records: 286,862,820
  • Lines: 288,584,537
  • Size: 8.49 GB
  • Passwords: Plaintext
In 2011, the website Pacific Internet (太平洋电脑网, PCOnline), a Chinese technology and electronics platform, suffered a data breach. Reports indicate that the breach exposed approximately 5 million user records. Among the compromised data were usernames, email addresses, and passwords stored in plain text.
  • Data: Email Addresses Passwords Usernames
  • Records: 5,444,464
  • Lines: 5,444,464
  • Size: 198.1 MB
  • Passwords: Plaintext

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.