Manchester United were still unable to fully restore its computer systems on Thursday night, sparking reports that cyber criminals were demanding millions of pounds in ransom. United’s computer network has been infected by ransomware, according to the report in the Daily Mail, with the club told they must meet the demands or confidential information relating to their internal affairs will be released to the public.. The Premier League club would not say whether they had received ransom demands, the reports of which have emerged a week after United were targeted in a cyber-attack that forced them to shut down their systems. Club staff still did not have access to email on Thursday evening, however, while other functions were also unavailable. “Following the recent cyberattack on the club, our IT team and external experts secured our networks and have conducted forensic investigations,” United said in a statement. “The club will not be commenting on speculation regarding who may have been responsible for this attack or the motives behind it.” “This attack was by nature disruptive, but we are not currently aware of any fan data being compromised,” the club said. “Critical systems required for matches to take place at Old Trafford remained secure and games have gone ahead as normal.” United has staged two games at Old Trafford in the days since being forced to shut down parts of the computer network. The European tie against Istanbul Basaksehir went ahead as planned on Tuesday, although certain administrative issues needed to be changed around entry to the ground for those in attendance. Investigative work aimed at safeguarding their systems were said to be at an advanced stage. The National Cyber Security Centre, has been involved in the recovery work and advised the club during the process.