GLS Gemeinschaftsbank eG

GLS Bank, also referred to as GLS Gemeinschaftsbank eG and GLS Bank Bochum, is a financial institution based in Germany with its headquarters located in Bochum. The bank operates under multiple aliases that reflect its regional and legal identity. Available information does not specify its exact range of banking products or services, nor does it detail the institution's size, customer base, or market presence. There is no explicit mention of its ownership structure, parent companies, or subsidiaries in the provided context. The bank's positioning within the financial sector and any specialized regulatory roles remain undefined by the source material. However, the institution is known to engage third-party service providers for certain operational functions, as evidenced by its relationship with Majorel, which handled bank account switching services.

On May 31, 2023, GLS Bank was affected by a major cyber incident targeting Majorel, an external service provider. The attack resulted in a significant data breach where over 144,000 customer datasets were stolen. Compromised data included customer names and account numbers, and these datasets later surfaced for sale on the darknet. While Postbank and Deutsche Bank were identified as the most severely impacted financial institutions in this breach, GLS Bank was explicitly listed among the affected banks. This incident demonstrates the vulnerability of financial institutions to supply chain attacks through third-party vendors. The theft of such a large volume of customer records represents a serious security event for GLS Bank, though the specific consequences for its customers are not elaborated in the summary. The breach underscores the critical importance of robust vendor risk management in the banking sector.