West Ham accidentally leaks hundreds of supporters’ personal data
The club accidentally copied fans’ details into a mass email addressed to up to 200 supporters


West Ham United could face action after accidentally leaking the details of hundreds of supporters in an email to confirm matchday tickets.
The football club accidentally cc-d the email addresses of up to 200 away season ticket holders to confirm their ticket allocations for the Football League Cup second round tie against Wimbledon AFC, set to take place next Tuesday.
Because only 675 tickets had been allocated for the tie, away season ticket holders were invited to apply for tickets via a special ballot. The leak of personal information occurred in a mass-email the club sent to successful supporters to provide details on how they could collect their tickets.
The erronious email was recalled after the club became aware of the mistake, and a follow-up message was sent several hours later to try to rectify the error, according to season-ticket holder Jack Lebeau.
"You may have received an email that included a segment of email addresses of those who were also successful in the ballot," the follow-up email read.
"The Club apologises that this information as inadvertently included and has reported this matter to the Information Commissioner's Office (ICO).
"The email was recalled where possible and we ask that if you did receive this email to please disregard it immediately. Beyond your email address, no other information has been shared."
Get the ITPro daily newsletter
Sign up today and you will receive a free copy of our Future Focus 2025 report - the leading guidance on AI, cybersecurity and other IT challenges as per 700+ senior executives
Under the European Union's General Data Protection Regulation (GDPR) data controllers must report any breach affecting data subjects within 72 hours, and inform the affected people that their details have been compromised.
This is one of the first instances of personal data being leaked by accident since the new legislation came into force on 25 May, and could see the club fined up to 20, or 4% of global annual turnover should the ICO find West Ham to have breached the regulation.
"We are aware of an incident involving West Ham United FC and are making enquiries," an ICO spokesperson said.
West Ham United told IT Pro it would not be publicly commenting on the breach, as the matter had been resolved and reported to the ICO.

Keumars Afifi-Sabet is a writer and editor that specialises in public sector, cyber security, and cloud computing. He first joined ITPro as a staff writer in April 2018 and eventually became its Features Editor. Although a regular contributor to other tech sites in the past, these days you will find Keumars on LiveScience, where he runs its Technology section.
-
CISA issues warning in wake of Oracle cloud credentials leak
News The security agency has published guidance for enterprises at risk
By Ross Kelly
-
Reports: White House mulling DeepSeek ban amid investigation
News Nvidia is caught up in US-China AI battle, but Huang still visits DeepSeek in Beijing
By Nicole Kobie
-
ICO admits it's too slow dealing with complaints – so it's eying up automation to cut staff workloads
News The UK's data protection authority has apologized for being slow to respond to data protection complaints, saying it's been overwhelmed by increased workloads.
By Emma Woollacott
-
“Limited resources” scupper ICO probe into EasyJet breach
News The decision to drop the probe has been described as “deeply concerning” by security practitioners
By Ross Kelly
-
Surge in workplace monitoring prompts new ICO guidelines on employee privacy
News Detailed guidance on how to implement workplace monitoring could prevent data protection blunders
By Ross Kelly
-
TikTok could be hit with £27m fine for failing to protect children's privacy
News Social media firm issued with a notice from the ICO for potential violations of UK data protection laws
By Bobby Hellard
-
What is AdTech and why is it at the heart of a regulation storm?
In-depth The UK data regulator has come under heavy fire for consistently delaying much-needed action, privacy groups say
By Carly Page
-
ICO crackdown on AI recruitment part of three-year vision to save businesses £100 million
News ICO25 outlines a fresh approach that involves releasing learning materials, advice, and a new ICO-moderated discussion forum for businesses
By Connor Jones
-
Clearview AI fined £7.5m over improper use of UK data
News Australian facial recognition firm collected 20 billion images from the internet without consent in order to build its database
By Bobby Hellard
-
UK data watchdog cut IT spending by £1.2 million during pandemic
News The ICO’s IT budget has been slashed by around 23% since 2019
By Sabina Weston