All Breaches
June 26, 2024 Verified Technology

TeamViewer Data Breach

In June 2024, remote connectivity and desktop support software provider TeamViewer disclosed a security compromise within its internal corporate IT environment.

Not disclosed
Affected People
5
Data Types
Not rated
Severity
Oct 27, 2026
Last updated

The organization has not published how many were affected, so the incident cannot be placed on this scale.

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Exposed Data Types

5
  • Employee data
  • Names
  • Business email addresses
  • Authentication credentials
  • Internal corporate data

About This Breach

The intrusion was attributed to the Russian state-sponsored threat group APT29 (Midnight Blizzard / Cozy Bear), which leveraged compromised employee credentials. While the attack led to the unauthorized access of internal corporate directory data, employee contact information, and encrypted credential hashes, TeamViewer confirmed that customer networks, source code, and product servers remained completely segregated and unaffected.

Verification and editorial method

LeakData compares the incident name, date, affected-record count, and exposed data types with accessible sources. Unverified fields are not presented as facts, and records are updated when new evidence becomes available.

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