..Our credit research covers a broad range of debt

..Our credit research covers a broad range of debt totaling over $30 trillion , and our analysts publish research on approximately 85,000 corporate and government securities, 73,000 public finance obligations, 4,300 corporate relationships, and 100 sovereign nations.

https://www.sec.gov/news/extra/credrate/moodys.htm

..The credit rating agency Moody’s has agreed to pay nearly $864m t o settle with US federal and state authorities over its ratings of risky mortgage securities in the run-up to the 2008 financial crisis, the department of justice said on Friday.
..S&P Global’s Standard & Poor’s entered into a similar accord in 2015 paying out $1.375bn . Standard and Poor’s is the world’s largest ratings firm, followed by Moody’s.
..Moody’s said that it stands behind the integrity of its ratings

https://www.theguardian.com/business/2017/jan...ial-crisis

What’s (Still) Wrong with Credit Ratings

..My overarching point in What’s (Still) Wrong with Credit Rating Agencies is that these reforms have had little or no impact , and that therefore the same credit rating-related dangers, market distortions, and inefficient allocations of capital that led to the crisis potentially remain. The major credit rating agencies are still among the most powerful and profitable institutions in the world .

https://corpgov.law.harvard.edu/2017/05/31/wh...t-ratings/

..Why did the rating agencies do such a bad job rating subprime securities? The story being told--of conflicts of interest-holds considerable appeal.

https://scholarship.law.umn.edu/cgi/viewconte...y_articles

The big three have admitted to falsifying ratings, past, present, and don't be surprised future. I would not take them serious, they careless if they misinform, as they are well connected in Gov as much as banking.