Its inconsistent redaction dates back to when publication of these payments started in 2010.
However, Sussex found many examples of full names being published and further information that could identify other people, such as partners or children, living at the addresses of those named.
The Information Commissioner#8217;s Office has been informed and is also investigating.
When this was put to the council, it said: #8220;We accept that people seeking to identify individuals could do so in some cases by making additional checks through other data sources.#8221;
Local authorities are required to publish details of any payment over £500 but WSCC reduced its threshold to £100.
The information published by West Sussex County Council (WSCC) has been available online for seven years.