Breach Intelligence

6,875

Total breached databases

In approximately January 2021, the Korean "Travel Notes" app known as 여행노트 (tnote.kr) suffered a data breach that impacted 170k users. The attack led to the exposure of data including Usernames, Email addresses, Phone numbers, Dates of birth, Device Names, Full names and Passwords stored in an Unknown format.
  • Data: Birthdates Device Information Email Addresses Names Passwords Phone Numbers Usernames
  • Records: 170,932
  • Lines: 171,053
  • Size: 40.98 MB
  • Passwords: Unknown
In January 2023, a database backup from Reebonz.co.kr, a luxury goods marketplace, was leaked. The breach exposed approximately 1.2 million records and occurred due to an AWS S3 bucket being accessed via an exposed environment file on a web application called Miniprofiler, which had been indexed by Google and contained AWS keys. Among the compromised data were email addresses and passwords.
  • Date: Jan 2023
  • Domain: reebonz.co.kr
  • Threat Actor: donjuji
  • Country: South Korea
  • Category: E-commerce & Retail
  • Source: hashmob.net
  • Data: Email Addresses Passwords
  • Records: 1,183,324
  • Lines: 1,183,325
  • Size: 70.71 MB
  • Passwords: MySQL
  • Cracked: 63%
Gamess.co.kr, also known as 게임세상 (Game World), is a Korean website that serves as a comprehensive resource for game-related content. The site offers various materials for different games, including manuals, editors, cheats, patches, and more. It covers a wide range of games, from classics like StarCraft and Diablo to various emulated and retro games. There is no information regarding the breach.
  • Date: 2011
  • Domain: gamess.co.kr
  • Country: South Korea
  • Category: Gaming
  • Data: Birthdates Email Addresses Government IDs Names Passwords Phone Numbers Physical Locations Usernames
  • Records: 1,968,646
  • Lines: 1,968,646
  • Size: 377.04 MB
  • Passwords: Plaintext
In March 2020, the Korean interior decoration website ???? (Decorating the House) suffered a data breach which impacted almost 1.3 million members. Served via the URL ggumim.co.kr, the exposed data included email addresses, names, usernames and phone numbers, all of which was subsequently shared extensively throughout online hacking communities.
  • Data: Email Addresses Names Phone Numbers Usernames
  • Records: 2,325,543
  • Lines: 2,325,663
  • Size: 459.1 MB
  • Passwords: MySQL
  • Cracked: 5%

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.