The Metropolitan Police are investigating alleged unauthorised access to a political party database, in a case which news reports have linked to the dispute surrounding the creation of Jeremy Corbyn and Zarah Sultana’s Your Party.
Man arrested under Computer Misuse Act
According to a statement attributed to the Metropolitan Police, officers received a report in September 2025 concerning alleged unauthorised access to a political party’s database. On Tuesday 13 October 2026, officers arrested a 26-year-old man in south-west London on suspicion of an offence under the Computer Misuse Act 1990.
The man was released under investigation pending further inquiries. A 39-year-old woman had previously been interviewed under caution in connection with the inquiry. Police said the investigation was continuing.
Neither person has been charged. The police statement did not identify the party involved or name any suspect.
Reports link inquiry to Your Party dispute
Reporting by The Guardian and Jewish News links the inquiry to the political organisation established in 2025 by former Labour leader Jeremy Corbyn and MP Zarah Sultana. That connection is based on reporting and the party’s response, rather than an identification of the party by police.
The party’s launch was marked by disagreement over a membership email and payment portal in September 2025. Corbyn publicly disputed the authorisation of an email promoting membership, while Sultana defended her efforts to enable supporters to join.
Your Party responds
A Your Party spokesperson said supporters had been alerted to an unauthorised email sent on 18 September 2025, adding that the party’s systems were secure and describing the matter as an isolated incident. The spokesperson declined further comment because of the continuing investigation.
There is no suggestion that Jeremy Corbyn or Zarah Sultana has been accused of wrongdoing in this investigation. The allegations remain under investigation and no criminal offence has been proved.