Weverse Data Breach Exposes 422,584 User Accounts

Weverse Data Breach Exposes 422,584 User Accounts

First seen 7 Sep 2026, 09:23 UTC Cineplay.Co.KrFinance.BiggoKoreaheraldKoreajoongangdailySoompi+1 54.0

Article Content

Browse articles
ThreatCluster

Weverse Company confirmed a data breach affecting 422,584 user accounts on September 6, 2026. The breach was identified following an external report from the Korea Internet & Security Agency (KISA) about a security vulnerability. The leaked data includes internal identification numbers and transaction-related information such as payment methods, purchase amounts, and refund dates. However, no directly identifying personal information like names was exposed. Weverse has strengthened security measures, including enhanced access controls for its payment processing API and has filed a breach incident report with KISA. The company is also pursuing legal action against the external actor responsible for the breach. Users affected have been notified as per regulatory requirements. Weverse maintains that the leaked information does not pose a significant risk for payment fraud or unauthorized transactions.

Key Points: • 422,584 user accounts affected by the Weverse data breach. • Leaked data includes internal IDs and payment transaction details, but no personal identifiers. • Weverse has strengthened security measures and is pursuing legal action against the attackers.

Ask AI about this cluster

Timeline

2026-09-03
Security vulnerability reported
KISA informed Weverse of a potential security vulnerability, prompting an internal investigation.
Soompi
2026-09-04
Breach incident report filed
Weverse filed a breach incident report with KISA, detailing the results of its internal inspection.
Finance.Biggo
2026-09-06
Data breach confirmed
Weverse Company confirmed the data breach affecting 422,584 user accounts and issued an apology.
Cineplay.Co.Kr
2026-09-07
Public notification issued
Weverse publicly notified users about the breach and the nature of the leaked data.
Koreaherald
2026-09-07
Legal action announced
Weverse announced intentions to pursue legal action against the external actor responsible for the breach.
Koreajoongangdaily