Serco, a British multinational, has been hit by a cyber attack, disrupting prisoner tracking and transport operations.The attack affected Serco's ability to monitor prisoners and track prison vans used for inmate transportation.The breach originated from a third-party vendor, Microlise, which was providing software services to Serco.The attack is under investigation, and it is speculated that it may have been carried out by a cybercriminal group with links to Russian intelligence.