Manchester United are refusing to confirm or deny whether the club is being held to ransom after a “sophisticated” cyber attack.
Old Trafford’s systems were compromised last week and are apparently still reeling from the effects, causing considerable disruption.
The Daily Mail have alleged that the hackers are demanding millions of pounds – but United have so far refused to comment on who is responsible or what their motive might be.
The club said in a statement: “Following the recent cyber attack on the club, our IT team and external experts secured our networks and have conducted forensic investigations.
“This attack was by nature disruptive, but we are not currently aware of any fan data being compromised.”
The statement continued: “Critical systems required for matches to take place at Old Trafford remained secure and games have gone ahead as normal.
“The club will not be commenting on speculation regarding who may have been responsible for this attack or the motives behind it.”
Manchester United could be hit with fines from regulators if supporter data is compromised in any way due to the cyber attack.
The National Cyber Security Centre – an organisation dedicated to supporting companies that have fallen victim to hacks or viruses – have stepped in and are continuing to provide Manchester United with advice and guidance moving ahead.
Parts of the network have apparently been switched off and will remain that way until the threat has been eliminated.