Breach Intelligence

2,849

Total breached databases

Zoosk 2011

Zoosk 2011

Sensitive
In approximately 2011, an alleged breach of the dating website Zoosk began circulating. The breach reportedly exposed nearly 53 million records, including email addresses and plain text passwords.
  • Data: Email Addresses Passwords
  • Imported:
  • Records Imported: 57,554,832
  • Number of lines: 57,554,881
  • Size: 4.27 GB
  • Passwords: MD5, Plaintext
In June 2023, a clone of the previously shuttered popular hacking forum suffered a data breach that exposed over 4k records. The breach was due to an exposed backup of the MyBB database which included email and IP addresses, usernames and Argon2 password hashes.
  • Data: Email Addresses IP Addresses Passwords Usernames
  • Imported:
  • Records Imported: 4,415
  • Number of lines: 1,122
  • Size: 512.14 KB
  • Passwords: Hashed
  • Cracked: 0%
A combination list of email:password was found in serval Telegram groups.
  • Date: 2020
  • Domain: opentable.com
  • Category: Compilations & Combo lists
  • Records Announced: 20,771,529
  • Data: Email Addresses Passwords
  • Imported:
  • Records Imported: 20,722,504
  • Number of lines: 20,771,529
  • Size: 557.97 MB
  • Passwords: Plaintext
In April 2021, "Japan's largest e-mail friend search site" Atmeltomo suffered a data breach that was later sold on a popular hacking forum. The breach exposed 1.3M records with 580k unique email addresses along with usernames, IP addresses and unsalted MD5 password hashes.
  • Data: Email Addresses IP Addresses Passwords Usernames
  • Imported:
  • Records Imported: 1,320,266
  • Number of lines: 1,321,068
  • Size: 671.49 MB
  • Passwords: MD5
  • Cracked: 100%
In September 2021, Argentina’s National Registry of Persons (RENAPER), the agency responsible for issuing national ID cards, reportedly suffered a significant data breach. The incident exposed the personal information of approximately 11,384,395 individuals. Among the compromised data were names, birthdates, genders, and government-issued ID numbers.
  • Date: 2021
  • Country: Argentina
  • Category: Government
  • Records Announced: 11,384,395
  • Source: nulled.to
  • Data: Birthdates Genders Government IDs Names
  • Imported:
  • Records Imported: 11,384,393
  • Number of lines: 11,384,395
  • Size: 1.62 GB
  • Passwords: No
In September 2023, over 1M rows of data from the educational robots company Sphero was posted to a popular hacking forum. The data contained 832k unique email addresses alongside names, usernames, dates of birth and geographic locations.
  • Data: Birthdates Email Addresses Geographic Locations Names Usernames
  • Imported:
  • Records Imported: 996,803
  • Number of lines: 1,001,767
  • Size: 275.8 MB
  • Passwords: No
A combination list of email:password was found in serval Telegram groups, probably as a result of credentials stuffing attacks.
  • Date: 2024
  • Domain: poloniex.com
  • Category: Cryptocurrency
  • Records Announced: 952,564
  • Data: Email Addresses Passwords
  • Imported:
  • Records Imported: 952,466
  • Number of lines: 952,564
  • Size: 29.27 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.