Back to overview
tving.com
Signal preview
Confidence MediumJun 3, 2026tving.com

TVING Data Breach Exposes Millions of Users' Personal Information and Digital Identity Keys

PatternExternal actor · Hacking · Confidentiality impact

South Korean streaming platform TVING, owned by CJ ENM, suffered a massive data breach due to unauthorized external access to its user database. The incident, detected on June 2, 2026, and publicly announced on June 3, 2026, led to the leakage of sensitive personal data, including unique digital identifiers known as Connecting Information (CI) and Duplication Information (DI). The breach affects millions of users and raises significant concerns about identity theft and financial fraud.

Signal date
Jun 3, 2026
Updated
Jun 29, 2026
Confidence
Medium
Sources
4 sources
tving.com logo

Tving

Domain
tving.com
Sector
Information
Signals
1 linked

Signal context

First seen: Jun 3, 2026

Last updated: Jun 29, 2026

Status: Public signal

Key points

  • Unauthorized external access to TVING's user database was detected on June 2, 2026.
  • Public announcement and apology issued by TVING on June 3, 2026.
  • Leaked data includes user IDs, names, birth dates, genders, phone numbers (partially encrypted), email addresses (ID portion encrypted), refund account numbers (encrypted), and one-way encrypted passwords.

Signal analysis

Beta

This analysis groups the signal by industry, likely incident action and impacted security area. It helps compare this signal with other published signals without treating the labels as final determinations.

Affected organization
Tving logo
Tving

Sector: Information

Likely country: Location not provided

Estimated
Threat source
Hacking activity

Watch internet-facing systems, credential abuse and exploit activity.

  • Source type: outside the affected organization
Business impact
Potential data exposure

Impact area: Confidentiality

Likely asset: User or customer data, Server or cloud data store

Trend context
74 signals with similar action pattern
  • 32 signals in the same sector
  • 97 signals with the same likely impact area
  • 1 signal linked to this organization/domain
Mentioned entities
TvingData DisclosureUsersPersonal Information and Digital IdentityKeys South KoreanTVINGCJ ENMConnecting InformationDuplication InformationUnauthorized

External sources

Related signals

Grouped by why the signal is relevant.

stnet.co.jp logoStnetJun 28, 2026
Same sectorSame action patternSame impact area

STNet, Inc. Affected by KDDI Corporation Data Breach

STNet, Inc., a Japanese internet service provider, was impacted by a data breach originating from an email system provided by KDDI Corporation. Threat actors gained unauthorized access to this shared system by exploiting a vulnerability in third-party software. This led to the potential exposure of up to 14.2 million email addresses and passwords across all affected ISPs. STNet customers' email addresses and passwords may have been compromised.

kddi-web.com logoKddi WebJun 28, 2026
Same sectorSame action patternSame impact area

KDDI Web Communications Customer Data Affected by KDDI Email System Breach

KDDI Web Communications, a subsidiary of KDDI, was impacted by the data breach in KDDI Corporation's email system, disclosed on June 28, 2026. The incident, caused by a third-party software vulnerability, led to the potential exposure of up to 14.2 million email addresses and passwords belonging to customers across six Japanese ISPs, including KDDI Web Communications.

kddi.com logoKddiJun 28, 2026
Same sectorSame action patternSame impact area

KDDI Corporation Data Breach Exposes up to 14.2 Million Email Logins

Japanese telecommunications operator KDDI Corporation disclosed a data breach where threat actors gained unauthorized access to one of its email systems. This system was also used by five other internet service providers (ISPs) in Japan. The company discovered the compromise on June 17, 2026, and responded by blocking the attacker and implementing defensive measures. The investigation determined that hackers exploited a vulnerability in unnamed third-party software. Up to 14.2 million email addresses and passwords, including those of current, former, and inactive customers, may have been exposed. Some passwords were stored in hashed and/or encrypted form, but the company did not specify the encryption type or the percentage of plaintext passwords. KDDI has reported the incident to Japanese privacy and telecommunications regulators. The breach impacts KDDI Corporation and its partner ISPs.

jcom.co.jp logoJcomJun 28, 2026
Same sectorSame action patternSame impact area

JCOM Co., Ltd. Affected by KDDI Corporation Data Breach

JCOM Co., Ltd., a Japanese internet service provider, was impacted by a data breach originating from an email system provided by KDDI Corporation. Threat actors gained unauthorized access to this shared system by exploiting a vulnerability in third-party software. This led to the potential exposure of up to 14.2 million email addresses and passwords across all affected ISPs. JCOM customers' email addresses and passwords may have been compromised.

biglobe.ne.jp logoBiglobeJun 28, 2026
Same sectorSame action patternSame impact area

BIGLOBE Inc. Affected by KDDI Corporation Data Breach

BIGLOBE Inc., a Japanese internet service provider, was impacted by a data breach originating from an email system provided by KDDI Corporation. Threat actors gained unauthorized access to this shared system by exploiting a vulnerability in third-party software. This led to the potential exposure of up to 14.2 million email addresses and passwords across all affected ISPs. BIGLOBE Inc. customers' email addresses and passwords may have been compromised.

nifty.com logoNiftyJun 28, 2026
Same sectorSame action patternSame impact area

NIFTY Corporation Affected by KDDI Corporation Data Breach

NIFTY Corporation, a Japanese internet service provider, was impacted by a data breach originating from an email system provided by KDDI Corporation. Threat actors gained unauthorized access to this shared system by exploiting a vulnerability in third-party software. This led to the potential exposure of up to 14.2 million email addresses and passwords across all affected ISPs. NIFTY Corporation customers' email addresses and passwords may have been compromised.