The well-travelled Bielsa owned up for the "spying scandal", apologising to Derby boss Frank Lampard but also revealing it's not anything new to him.
The club says they are in discussions with Leeds over the incident.
"I am the only one responsible for it, because I didn't ask for the permission of Leeds to do it".
"That's good. He said the same to me, so I'm pleased", said the Derby manager.
"I have a different point of view but the important thing is what Frank Lampard and Derby County think".
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The Italian said he has recommended Chelsea need to recruit two players, but declined to say their positions. They are talking about a player under contract with Chelsea , so they didn't respect our club I think.
"There is some precisions that I need to give".
While the Argentine admitted that he felt he had "done something wrong" while speaking to Sky Sports reporters before the game, he did qualify that admission of guilt with this statement: "I have been doing it since the World Cup qualifiers with Argentina". Yesterday I talked to Frank and he told me I didn't respect his club. "For some people it's the wrong thing to do and for other's it's not the wrong thing to do". If we are going to talk about culturally and say I did it somewhere else and it's fine, I don't believe that. "It has disrupted our buildup to this game".
"It is, of course, up to Derby County as to how they progress this matter but as of yet we have received no complaint or contact from the club", an EFL spokesman said.
'No. and I don't care if it's cultural and it happens in another country. We were training on team tactics, team shape, personnel, how we are going to press, how we will work off the ball, the fact Harry Wilson wasn't training would become evident, so the person who is watching will see all of that. If I travel ever - if I'm lucky enough to do well and possibilities come up later on in my managerial career - I will find out what the etiquette is in that country and I will abide by it.
"He's admitted it, so I don't think there'll be any further action but we had a guy in the bushes before we played Leeds earlier this season and we lost 4-1". Their next home game sees them host Norwich at the start of February, a game which, if they win, could see them take a significant step towards promotion to the top flight for the first time since 2004.