Wikipedia has an article about practically everything credit-related: annualcrediteport.com, consumer credit risk, credit history, credit rating, credit score, credit score “(United States),” FICO, and on and on.
There is even an article about the number 600. In it, a Wikipedian contends that 600 or below is a “poor” credit score, but does not identify the score model.
Of course, a 600 FICO score is a relative number; what is poor to one lender might be acceptable to another. On its shining new website ScoreInfo, FICO credit score company Fair Isaac can’t seem to bring itself to even use the term. And, while it calls 560 to 659 “Not good,” it says that some lenders will still approve loans at that range. But, the Wizard takes a hard line in the next lower category. It calls scores lower than 560 “Bad.”