Manchester United are being assisted by the UK’s cyber security agency after an online attack failed to fully recover the club’s systems.
The club said Hacked last week But That it was “not aware of any personal data breaches related to our fans and customers”.
It reported an attack on the information commissioner’s office in accordance with the law.
Premier League club staff still do not have access to email and the National Cyber Security Center (NCSC) is now involved.
A spokesman said: “NCSC is aware of an incident affecting Manchester United football club and we are working with agencies and partners to understand the impact.”
The club will not say “who is responsible for the attack or the motives”.
“This attack was catastrophic in nature, but we are not currently aware of any fan data compromises,” it added.
“Critical systems required for matches at Old Trafford were secure and games proceeded as normal.”
If any fan data is found to have been compromised, the club could face a fine from the Information Commissioner’s Office.
November 13, was the ticketmaster A £ 1.25m fine transfer The 2018 attack comes after it was judged to have failed to protect customer data.
The NCSC said earlier this month that it had protected the UK from more than 700 cyber attacks last year, adding that it had dealt with three times as many ransom attacks as the previous year.
It further said that the attackers were adapting to their methods when attacking criminals, threatening to leak data publicly if ransom was not paid.