Managed SIEM for the Oldenburgische Landesbank

Identify real security incidents cleanly

Managed SIEM for Oldenburgische Landesbank

Clearly identify real security incidents

Initial situation

The bank, which was created in 2018 through the merger of Oldenburgische Landesbank (OLB AG) and Bremer Kreditbank AG (BKB AG), worked with a log management tool that logged and stored all incidents of the devices, endpoints and applications connected to the network.

All the data was made available to Frank Feldmann, IT security and data protection officer at OLB, and his team in a simple PDF report comprising several thousand pages. This legacy system was not designed to correlate the collected data and precisely identify and prioritise security incidents.

SIEM implementation within one week

The SIEM was to be implemented in the shortest possible time. Within a week, ConSecur had the SIEM up and running, connecting 800 log sources such as firewalls, servers, switches and bank-specific applications and integrating them into the monitoring system.

However, the number of incidents (events) per second unexpectedly increased significantly as a result of these newly connected log sources, so ConSecur advised an adjustment to the licensing.

Conclusion - leading, target-orientated implementation

Oldenburgische Landesbank has a scalable SIEM solution that monitors security events within the critical infrastructure promptly and appropriately.

Following the piloting and rapid deployment of the SIEM, the analysts at ConSecur GmbH took over ongoing operations with Managed SIEM.

Proof of Concept (PoC)

SIEM piloting within 15 days

The requirements for the new SIEM to be designed were the rapid provision of an operational SIEM, the scalability of the solution as it grew with the bank, and operational operation by specialised experts. After analysing these requirements, ConSecur submitted a proposal to OLB to set up a SIEM with security monitoring as a pilot project and to test the performance of the SIEM.

and to demonstrate the SIEM's performance live during operation. IBM QRadar Security Information and Event Management (SIEM) supports security teams in the precise detection and prioritisation of security threats.

The market-leading tool reliably detects IT security incidents and thus minimises the risk of security threats to the corporate network.

"With the SIEM pilot, we were able to simulate in an environment customised to OLB how the SIEM will be set up and how security monitoring with our analysts will work in practice," says Jens Wübker, Head of Sales at ConSecur GmbH.

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