What happened at the Royal Borough of Kensington and Chelsea?

RBKC experienced a cyber-attack where data was copied from its systems, prompting a warning to residents.

Are other London councils affected by cyber-attacks?

Yes, Westminster city council and the borough of Hammersmith and Fulham have also reported cyber incidents this week.

What should residents do after the Kensington Council cyber-attack?

Residents are advised to be extra vigilant with calls, emails, and texts, and to protect themselves if they deem it necessary.

Home / Technology / London Council Hit by Cyber-Attack: Residents Warned

London Council Hit by Cyber-Attack: Residents Warned

28 Nov, 2025

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Summary

Thousands of London residents urged to be vigilant after data breach.
Personal or financial details might have been accessed by attackers.
Multiple London councils impacted by cyber incidents this week.

London Council Hit by Cyber-Attack: Residents Warned

The Royal Borough of Kensington and Chelsea (RBKC) has alerted its residents to be extra vigilant following a significant cyber-attack that compromised its systems. The council is actively investigating whether the stolen data, believed to be historical, includes any personal or financial information.

In conjunction with national cybersecurity agencies and law enforcement, RBKC is working to identify the perpetrators and restore affected services, anticipating at least two weeks of disruption. This incident is part of a broader pattern, with Westminster city council and the borough of Hammersmith and Fulham also reporting cyber incidents this week.

Councillor Elizabeth Campbell emphasized the importance of informing residents promptly, stating it allows individuals to take necessary precautions. This situation highlights the increasing threat of cyber-attacks on public bodies across the UK, with a particular focus on ransomware tactics often linked to Eastern European criminal groups.