Hackney Council staff have been sent an urgent memo warning them against phishing attacks, according to the Local Democracy Reporting Service (LDRS).
An official note seen by the LDRS stated: “We have received intelligence that multiple London councils have been targeted by cyber-attacks within the last 24-48 hours, with potential disruption to systems and services.
“Your immediate co-operation is essential to protect the council and the data of our residents.”
The LDRS has also seen a Westminster City Council internal memo, saying it had shut down all its networks as a precautionary measure following a “cyber-security incident”.
It is understood the council triggered “business continuity arrangements” and an emergency response, with senior managers helping to support some services.
RBKC wrote on X to say it was experiencing a “serious IT issue”, external that was making it difficult to people to contact it.
The LDRS says some systems at RBKC have been down for two to three days, according to some sources.
The RBKC spokesperson said the authority was working with Westminster City Council and cyber specialists to “protect data and restore services”.
“We are investigating the cause of the incident and will provide more information when it is available. We would like to apologise for any disruption and thank residents for their patience as we work to bring systems back online safely.”
The LDRS has also seen an internal memo by Hammersmith & Fulham Council saying it had responded to a “serious cyber-security incident”.
