The revelation was the latest dramatic development in the labyrinthine web of corruption cases threatening to ensnare the former French president and destroy his chances of a political comeback.
Judges started tapping Sarkozy's phones last year after opening a formal investigation into allegations that the late former Libyan dictator Gaddafi helped finance his 2007 election campaign, according to respected daily Le Monde.
Judicial sources confirmed to AFP that a recorded call between Sarkozy and his lawyer Thierry Herzog was the basis for a new investigation opened last week into a suspected attempt to obtain, via a friendly judge, inside information about ongoing -- and top secret -- proceedings before one of France's highest courts.
Herzog said today that Sarkozy "is probably still being tapped," and denounced what he said was a politically motivated plot against his client.
"There was no attempt to pervert the course of justice and in due course this monstrous violation will be shown to have been a political affair," the lawyer told AFP.
An investigation into allegations that Sarkozy accepted millions of euros from Gaddafi was opened in April 2013 on the basis of claims made by one of the dictator's sons, his interpreter and the man who allegedly delivered the cash.
