- Published
- Source
- DataBreaches.net
- Filed under
- Data breaches, Law & courts, Attacks
The Coupang breach in South Korea has stayed in the news cycle for nine months and may offer a useful case study in how not to respond to an incident. In December 2025, South Korea’s largest online retailer, Coupang, apologized for a November breach affecting more than 33 million customers. A former developer who worked……
Think your details were in it?
- Check your email address at Have I Been Pwned – it lists the breaches your details have appeared in.
- Change that service's password, and any other account that used the same one. A password manager makes every password unique.
- Turn on two-step verification, and expect scam messages that quote the leaked details to sound convincing.
More helpHave I Been Pwned (opens in a new tab)NCSC: top tips for staying secure online (opens in a new tab)
MyCyberWay training
Blue Team Specialist
Breaches like this get investigated, not just reported.
Blue Team Specialist takes the Analyst curriculum and adds the investigator's work: one incident owned end to end, hypothesis-led threat hunting with MITRE ATT&CK and KQL, breach analysis, and a root cause report people can act on.
- Scope, attacker path and dwell time
- Threat hunting with ATT&CK and KQL
- Root cause analysis and reporting
Headlines and short summaries only, except where a public body publishes under an open licence. Every story links to its publisher, who owns it. MyCyberWay does not edit or endorse third-party reporting.
