Statistics about unemployment, benefits and child support cases are not to be published this month because of increased security around data handling.
The Department for Work and Pensions (DWP) has warned that its quarterly statistical summary will not be released on Wednesday as planned because of safeguards put in place last year.
There has been a department-wide ban on any movement of data since HM Revenue and Customs' (HMRC) lost personal data relating to 25 million people.
Following chancellor Alistair Darling's launch of an inquiry into the way data is handled generally and HMRC's loss of two discs in the post in particular, DWP permanent secretary Leigh Lewis announced the department’s own review of how data is transferred.
He also told staff there would be a temporary suspension of all data movements while the work was being carried out.
In a statement, the department said: "This temporary data transfer freeze meant that not all of the data that would be used to compile the statistics within the statistical summary was complete or up-to-date."
As a result, the DWP's tabulation tool will not be updated to show August 2007 figures, with May's figures remaining the most up-to-date.
The spokesman said data was "gradually" being restored and new figures would be released "as soon as possible".
