Counter-terrorism officers, politicians and celebrities are among more than 1,000 New Year Honours recipients who have had their home addresses revealed by the Government.
The Cabinet Office has apologised after a spread sheet containing the personal details was accidentally posted on the Government website for more than an hour.
The fact that the details of senior police officers and Ministry of Defence staff were among them will be seen as a major security breach.
A total of 1,097 people were awarded honours and it is understood that most of the entries on the spreadsheet included full addresses with house numbers.
The list saw awards given to England's World Cup winners, top entertainers including Sir Elton John, and prominent figures from politics and the legal profession.
Among them were the former director of public prosecutions Alison Saunders and ex-Conservative Party leader Iain Duncan Smith, the architect of the Universal Credit system, whose knighthood sparked a backlash from critics.
A small number of MoD staff had their details redacted before it was published.
A Cabinet Office spokesman said: "A version of the New Year Honours 2020 list was published in error which contained recipients' addresses.
"The information was removed as soon as possible.
"We apologise to all those affected and are looking into how this happened.
"We have reported the matter to the ICO (Information Commissioner's Office) and are contacting all those affected directly."
The ICO has a range of powers if they find a data breach and can fine an organisation up to 20 million Euros.
A spokesman for the regulator said: " In response to reports of a data breach involving the Cabinet Office and the NY Honours list, the I ..
Support the originator by clicking the read the rest link below.
