James Murdoch is preparing to concede that News Corporation should have acted faster over the phone hacking scandal

. Photograph: Miguel Villagran/Getty

James Murdoch is preparing to concede in front of MPs that News Corporation should have taken further action earlier to investigate allegations that phone hacking was more widespread at the News of the World than the actions of a single rogue reporter.

The News Corporation boss is to appear before the culture media and sport select committee on Thursday ready to admit that more could have been done between 2007 and 2010 when first insiders and later rivalnewspapers said the illegal practice was widely deployed.

Fighting to save his career, Murdoch is aware he has to appear informed about how News Corp dealt with the hacking allegations – and he has to be prepared to admit that mistakes were made, including by himself.

However, with advisers such as News Corp's acting chief lawyer Janet Nova flying in, it is not clear how far the company's legal team will allow James Murdoch to make the limited concessions planned. Friends of Murdoch say he is "surrounded" by people giving him advice, making it hard to proceed.

The News Corp boss also plans to sidestep any questions about the size of the severance payment made to former News International chief executive Rebekah Brooks. It was reported at the weekend that the figure received was £1.7m, although it is understood the payment was in fact larger than this.

Acutely aware of what is becoming a sensitive issue at the company, Murdoch is expected to say any payments made to Brooks cannot be discussed due to contractual confidentiality. News Corporation has no legal obligation to disclose the size of the severance because Brooks was not a director of the US-listed company.

Murdoch was in charge of the News of the World and the company's other British newspapers as part of his job as executive chairman at UK subsidiary News International. He took over from Les Hinton at the end of 2007, nearly a year after News of the World royal editor Clive Goodman was jailed for his involvement in hacking into phone messages left for Prince William and Prince Harry's staff.

Before Murdoch arrived Hinton agreed to pay Goodman a severance of £240,000, after Goodman launched an unfair dismissal claim. News International has said it found no evidence at the time that hacking went on more widely.

A year later, Murdoch agreed to pay football boss Gordon Taylor £425,000 plus £200,000 to settle a phone hacking lawsuit. Controversy surrounds the payout – with former News of the World editor Colin Myler and chief lawyer Tom Crone saying Murdoch was told of an email that made it clear hacking went beyond Goodman. Murdoch has told the committee he had no knowledge of the email.He has also said he was not shown a separate report prepared for Tom Crone by QC Michael Silverleaf – which said that there appeared to be a "culture of illegal information access" at the News of the World. It is understood that he will offer new additional information about what he knew at the time.

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