The LockBit ransomware group has apologised for a December attack on one of Canada’s largest children’s hospitals.
The Toronto-based Hospital for Sick Children (SickKids) was hit with a ransomware attack on 18 December which saw systems taken offline and services disrupted.
However, in a rare turn of events, the gang issued an apology on 30 December and announced it had released a free decryptor for data seized in the attack.
Security researcher Dominic Alvieri first highlighted the apology in a Twitter thread over the weekend, noting that the affiliate responsible for the attack had breached the group’s rules.
“We formally apologise for the attack on sikkids.ca and give back the decryptor for free, the partner who attacked this hospital violates our rules, is blocked and is no longer in our affiliate programme,” LockBit said in its statement.
SickKids said it was aware of the apology and decryptor release. The organisation added that it was working closely with external security teams to establish the legitimacy of the decryptor.
“The Hospital for Sick Children (SickKids) is aware of the statement issued online by a ransomware group that included an offer of a free decryptor to restore systems impacted by the cyber security incident,” the hospital said.
“We have engaged our third-party experts to validate and assess the use of the decryptor.”
Getting board-level buy-in for security strategy
Why cyber security needs to be a board-level issue
The ransomware attack on 18 December caused significant disruption to operations at the SickKids hospital, affecting both internal and corporate systems, phone lines, and its official website.
As a result of the attack, the hospital revealed that patients had encountered delays in receiving lab results, which caused lengthy waiting times.
In an update on 29 December, the hospital confirmed that around 50% of its priority systems had been restored in the wake of the incident. However, SickKids warned that patients might still face lengthy waits as security experts worked to achieve a full restoration of services.
“While system restoration is occurring quicker than originally anticipated, we do not have a timeline for when all systems will be restored and the Code Grey will be lifted,” the hospital said.
“The hospital’s Information Management Technology (IMT) team as well as clinical and operational teams are manually testing and validating impacted systems before they can be fully operational.”
The apology from LockBit marks the second incident of its kind over the last two years. In May 2021, the Conti cyber crime group provided a free decryptor to Ireland’s Health Service Executive after an attack crippled operations.
This does represent a rare change in how LockBit operates, however. While the ransomware as a service (RaaS) group prevents attacks on medical institutions which may lead to patient deaths, it has frequently targeted hospitals and health trusts.
After the health trust refused to pay, LockBit then leaked sensitive patient data online.
Get the ITPro. daily newsletter
Receive our latest news, industry updates, featured resources and more. Sign up today to receive our FREE report on AI cyber crime & security - newly updated for 2023.
Ross Kelly is ITPro's News & Analysis Editor, responsible for leading the brand's news output and in-depth reporting on the latest stories from across the business technology landscape. Ross was previously a Staff Writer, during which time he developed a keen interest in cyber security, business leadership, and emerging technologies.
He graduated from Edinburgh Napier University in 2016 with a BA (Hons) in Journalism, and joined ITPro in 2022 after four years working in technology conference research.