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London Property Manager Breach Exposes Sensitive Customer Data

London Property Manager Breach Exposes Sensitive Customer Data

First seen 18 Sep 2026, 18:54 UTC

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ThreatCluster AI
ThreatCluster September 18, 2026 at 21:53 UTC
  • City Relay's Metabase Cloud instance was breached, exposing sensitive customer data.
  • The breach may have compromised financial information, including bank account details.
  • City Relay notified customers six days after discovering the intrusion.

City Relay, a London property management company, reported a breach of its Metabase Cloud instance, where attackers accessed sensitive customer data twice due to an unknown vulnerability. The compromised data includes personal information such as names, email addresses, and financial details like bank account numbers and access codes for properties. City Relay became aware of the intrusion on September 8 and notified affected customers on September 14, advising them to monitor their accounts for unusual activity. The breach raises concerns about the physical security of the properties managed by City Relay, as access codes and key storage information may have been exposed. The company has not disclosed the number of affected customers or how attackers exploited the system. Security experts emphasize that the impact of such a breach depends on the data linked to the Metabase platform. City Relay has taken precautionary measures to secure access and key storage codes.

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Timeline

2026-09-08
City Relay discovers breach
City Relay became aware of unauthorized access to its Metabase Cloud instance.
Computing
2026-09-14
Customers notified of breach
City Relay informed affected customers about the potential exposure of their data.
The Register
2026-09-17
Public disclosure of breach
The breach was reported in cybersecurity news outlets, detailing the extent of the data compromised.
The Register

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