Cyber attack 'cost Hackney Council £10m' - audit finds
Julia Gregory Local democracy reporter
- Credit: William Mata
The “devastating” cyber attack on Hackney Council has exacerbated the “flexibility and resilience” of its finances, councillors have heard.
Cyber criminals struck in October 2020, when the Town Hall was already coping with the impact of the pandemic, and the following January saw data published in the dark web.
File names including ‘Tenancy Audits’ and ‘Complaints Community Safety’ were among the material allegedly published, but council bosses stressed that the stolen data was not “a big cache of bank and credit card details”.
The hack, which could cost the council £10million, affected multiple services and left key data missing. It is being investigated by the National Crime Agency.
The council’s audit committee this week discussed a specially commissioned report by its auditors Mazars, but did it behind closed doors.
That decision was challenged by the Local Democracy Reporting Service because of the public interest in the attack, which saw staff and residents’ data exposed by the hackers.
The council cited legislation and said it could not talk about the £10,085 report in public because it included “information relating to any action taken or to be taken in connection with the prevention, investigation or prosecution of crime”.
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Committee chair Nick Sharman said: “This is one of the most devastating attacks that we’ve received. It’s had a harmful effect both on the council’s operations and on residents and we certainly want to share as much information as is possible.”
He said the council will look at what it can make public.
In a public report, finance and corporate resources director Ian Williams said: “Following work performed by Mazars IT audit team, in response to the cyber attack on the council, Mazars have concluded that they are satisfied that in all significant respects, the council had put in place proper arrangements to secure economy, efficiency and effectiveness in its use of resources for the year ended 31 March 2020.”
Cllr Sharman told the meeting: “I am sensitive to the points raised by the objections.”
During the public part of the meeting, during which council finances were discussed, risk officers said the attack is still causing problems with housing services.
Housing director Steve Waddington explained that the loss of the housing benefit system in the attack means no new tenants have had their benefits assessed since August 2021.
They have prioritised getting people who are homeless or in temporary accommodation “through the system first”.
The council is tracking the impact.
Waddington said the attack also meant that data was lost for “a high number of cases” of people whose benefits were processed between July and October 2020 – in the run-up to the cyber attack.
“We anticipate the impact of the housing benefit and universal credit owed to the housing revenue account is around £2m to £2.5m, which will ultimately be credited to individual accounts,” he said.
The council is also working to rebuild its IT system, which assesses arrears – currently at £14.8m.
“I cannot underestimate the impact of not having that arrears system in place because we’re not able to accurately determine when we want to take enforcement action, progress to court without that system in place,” said Waddington.
Ajman Ali, the council’s neighhourhoods and housing group director, described how the hack forced staff to go back to “pen and paper”.
He said: “The cyber [attack] has had a really big impact on neighbourhood and housing services.”
He explained that it hit planning, business and regulatory services, and “more significantly housing services which is very IT-reliant”.
In its audit of the council’s finances, Mazars added risks to the collections fund, housing revenue account and housing benefit spending because of the attack.
Over a year on, social services “do not yet have access to the full set of
functions required to operate normally”, although “core data” was recovered.
The council said it is still working to recover data. It said the most critical services affected are social care, benefits and revenues, planning and land charges and housing.