Impact from Cybersecurity Incident Continues
Hammersmith & Fulham Council urges caution but says systems not breached
Some key council services may be affected
December 1, 2025
Hammersmith & Fulham Council has confirmed it was impacted by a cyber attack earlier this week but says there is no evidence that its systems have been breached or that any resident data has been copied.
The incident, which originated at neighbouring Kensington and Chelsea Council, affected three West London local authorities that share IT services — Hammersmith & Fulham, Westminster City Council, and Kensington and Chelsea.
While Kensington and Chelsea has reported that some archived data from 2006–2020 may have been copied, Hammersmith & Fulham has stressed that its own network was successfully isolated and safeguarded.
In an update published on its website, the Council said, “Our teams are working around the clock with other experts to review our systems and restore them to business as usual as our highest priority. We will provide further updates as we restore services and our investigations progress. We apologise for the inconvenience.”
As a precaution, some applications — including My Account — have been temporarily suspended. The Council added, “We have been informed by the neighbouring council that some archived 2006–2020 data may have been copied but not lost. We are investigating and will update as soon as we know more.”
The Council has urged residents to remain vigilant:
- If you have made payments to the Council (e.g. for parking permits), check that bank and card details remain secure.
- Be alert to suspicious emails, texts, or calls that may attempt to obtain personal information.
- If you are concerned about non-financial personal data, follow the guidance provided online and await further updates.
Customer service lines and centres remain open, though the Council acknowledges staff may not yet have all the answers.
“Please be assured we are sharing this update at the earliest opportunity so that residents can take action themselves if they feel it necessary,” the statement continued.
Kensington and Chelsea Council has confirmed a data breach involving historical records and is operating an emergency Customer Service Centre at Kensington Town Hall. Westminster City Council has temporarily shut down its computer networks as a precaution. The National Crime Agency and the Information Commissioner’s Office are investigating the incident.
Hammersmith & Fulham Council emphasised that while disruption may continue for up to two weeks, essential services will remain available and additional staff are being deployed to support residents.
Ben Lynch - Local Democracy Reporter