Why did the company fail and what are the causes that led to the failure of this company in the 21st century?

Introduction about Enron.
Why did the company fail and what are the causes that led to the failure of this company in the 21st century?
Discuss about the management and the Ceo’s and how they managed to cover up bank statement?
what made the company bankrupt and how did they get caught covering their statements/secrets?