Chairman Keith Vaz said the Home Affairs Select Committee "remains concerned" after it was handed a list of 102 names of companies and individuals linked to rogue private investigators.
The Committee remains concerned that it holds a list that Soca [Serious Organised Crime Agency] has classified as secret, even though it is evidence given as part of our inquiry.
This is an important step forward in establishing the facts.
Mr Vaz also confirmed there are five organisations or individuals on the list who are being investigated as part of Operation Tuleta, Scotland Yard's investigation into allegations of computer hacking.
More top news
James Deen, one of the world's most famous porn stars, denies allegations of sexual abuse made by several women, including former partners.
The Good Morning Britain team have been showing support for Text Santa by performing their own version of the Wham! hit Last Christmas.
A seven-month-old baby was shot and killed when a shotgun belonging to his mother's boyfriend went off in their living room, police say.