A credit report contains an individual's personal and financial information used by lenders to assess credit risk. It includes sections for personal details, credit history of open and closed accounts, credit inquiries, public records like bankruptcies, and a summary. Credit reports are prepared by the three major credit bureaus - Equifax, Experian, and TransUnion - and detail an individual's addresses, SSN, accounts, payment history, inquiries, and more to evaluate their creditworthiness.