Prior to the 2008 financial crisis, the Federal Reserve had an important role - to solely act as a "lender of last resort" to traditional commercial banks. But during the crisis, the financial support was extended to many non-banking firms like money market mutual funds, the commercial paper market, mortgage-backed securities market and the tri-party repo market. Besides the extensive lending, non-commercial banks (also known as shadow banks) like Bear Stearns and Lehman Brothers were first to fail, triggering one of the worst financial crises across the world.
