CSIDB logo
Incident

DG Immobilien Management

Incident posture

Attack window
Jan 2024
Location
Germany
Status
Historical
CIA posture
Available to members
Updated
2026-01-04 21:25

Linked entities

Victim
DG Immobilien Management
Threat actors
0 actors
Sources
1 source

Timeline

Occurred
Jan 2024
Discovered
Pending
Disclosed
Pending
Resolved
Pending

Summary

A cyberattack targeted DG Immobilien Management, a real estate fund subsidiary of cooperative Volksbanken, potentially compromising tens of thousands of customer records including addresses, birth dates, financial details, tax numbers, official correspondence, and identity documents. The parent institution DZ Bank stated forensic investigators were assessing data exfiltration scope while warning affected investors of potential fraud risks leveraging stolen information. Law enforcement and data protection authorities were notified amid broader financial sector concerns over escalating cyber threats, as highlighted by recent European Central Bank warnings and similar incidents impacting other organizations.

Motives

Detailed motive labels are available to members.

1 motive

TTPs

Detailed technique labels are available to members.

3 techniques

Description

In early 2024, DG Immobilien Management, a real estate fund subsidiary of Germany’s Volks- und Raiffeisenbanken cooperative banking group, suffered a cyberattack resulting in potential data theft affecting tens of thousands of customers. Hackers infiltrated the company’s systems, potentially exfiltrating sensitive client information including addresses, birth dates, investment amounts, bank account details, tax identification numbers, official tax authority communications, written correspondence, and verification documents. The breach was disclosed to customers via direct communications from DG Immobilien, which warned investors about heightened risks of fraud attempts leveraging the stolen data—such as criminals using compromised documents to illicitly obtain additional access credentials. DZ Bank, the central institution for the Volksbanken cooperative network holding a 5% stake in DG Immobilien, confirmed ongoing forensic investigations to determine the full scope of data exposure and specific data categories affected. The majority ownership of DG Immobilien resides with BAG, a entity owned by the cooperative banks that also functions as a resolution bank.

DZ Bank engaged two specialized forensic firms to analyze the breach while coordinating with law enforcement agencies and data protection authorities. The institution emphasized that conclusive findings regarding the extent of compromised investor personal data remained pending at the time of its public statement. The incident occurred amid escalating cyber threats targeting financial institutions, with the European Central Bank (ECB) publicly warning about increased risks and conducting resilience tests on banks. This attack aligned with broader patterns of cyber intrusions affecting German entities, including a June 2023 breach of the CDU political party that exposed data belonging to its chairman Friedrich Merz and a February 2024 ransomware attack that halted production for weeks at battery manufacturer Varta. DG Immobilien’s primary business involves managing closed-end real estate funds, though the attack’s operational impact on fund management activities was not detailed in initial reports.

Sources

Sources available to members: 1 source.

CSIDB