Court allows Denis O'Brien to add 370 names to defamation action over fake ads on Meta platforms

The names of the additional persons he is suing will all be listed in the proceedings as 'John and Jane Doe' as the businessman's lawyers say they been unable to ascertain with exact certainty who are behind the advertisements

Denis O'Brien sought information on the full names of those who have paid for and have placed the adverts, their email addresses, phone numbers, physical addresses, the date, time and IP addresses of all the login and logouts for each of the relevant accounts, and details of the payment methods linked to the relevant accounts. File photo: Julien Behal/PA

The High Court has allowed Denis O'Brien to add more than 370 names to defamation proceedings the businessman has brought over a series of allegedly fake, malicious and misleading advertisements featuring him that were posted on platforms operated by Meta.

As well as suing Dublin-based Meta Platforms Ireland Limited, which is the social media giant's European HQ, Mr O'Brien is suing the parties he claims are behind the adverts.