(Alliance News) - Capita PLC said on Thursday morning that it had restored "virtually all" client services and employees' access to internal applications, after both were affected by a cyber "incident".
The incident, announced by the business service provider on April 3, predominantly blocked employees' access to internal Microsoft Office 365 applications. Capita and its technical partners have now restored access.
"The majority of Capita’s client services were not impacted by the incident and remained in operation, and Capita has now restored virtually all client services that were impacted," it said.
According to Capita's investigations, the attach appears to have started following unauthorised access on or around March 22, it said. On March 31, the company interrupted the breach.
Capita has said this action "significantly restricted" the incident, which potentially impacted approximately 4% of the company's server estate.
"There is currently some evidence of limited data exfiltration from the small proportion of affected server estate which might include customer, supplier or colleague data," Capita said.
According to the Guardian newspaper, it is possible that the attack's perpetrators were able to access public sector information. Capita has not disclosed the number of customers who may have been affected.
At the time, the incident caused major IT outages for some of Capita's clients. These included local councils and agencies involved in critical national infrastructure.
Capita stated that it is still conducting forensic investigations, and will in a timely manner inform any colleagues, suppliers or customers who have been affected.
Shares in Capita were up 0.7%, at 33.77 pence, on Thursday morning in London.
By Emma Curzon, Alliance News reporter
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