The parliamentary staff member who commissioned an unauthorised audit of internet use which forced the sudden resignation of a minister last week has herself resigned.

Lisa Vineburg, a human resources executive in the NSW Department of Parliamentary Services, left her position after it emerged she had asked the IT department to trawl through the computers of all ministers and MPs, their staffers and all non-political employees in Macquarie Street.

The raw data, which suggested about five people had recorded an usually high level of activity or "hits" from adult or gaming websites, was subsequently leaked to the media.

When confronted by a journalist about the report, the Minister for Ports and Waterways, Paul McLeay, resigned, and the Christian Democrats MP, the Reverend Fred Nile, was forced to admit a staff member, David Copeland, looked up such websites for "research purposes".

Ms Vineburg "took it upon herself to audit everyone in the building", a senior parliamentary source said.

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This morning, Ms Vineburg confirmed that she had resigned, however she declined to comment further.

The Herald does not suggest Ms Vineburg leaked the material.