CTS, a managed service provider (MSP) for law firms in the UK, said on Friday that it was “experiencing a service outage which has impacted a portion of the services we deliver to some of our clients,” adding that “the outage was caused by a cyber-incident”.

Estate Agent Today reported that CTS had been hacked through the CitrixBleed bug which officials in the US have warned is being used by both state-sponsored groups and cyber criminals.

CTS said in a statement: “We are experiencing a service outage which has impacted a portion of the services we deliver to some of our clients. The outage was caused by a cyber-incident. We are working closely with a leading global cyber forensics firm to help us with an urgent investigation into the incident and to assist us in service restoration.

“We continue to work around the clock with the assistance of third-party experts. Whilst we are confident that we will be able to restore services, we are unable to give a precise timeline for full restoration. We will continue to communicate directly with those of our clients which are impacted by the service outage, providing regular updates on the status of our work to restore services and our investigations into the incident.”