"It's a fact of business life that technology vendors sometimes go out of business or sunset their products. Over the years, we've found a failing vendor or open-source project will exhibit telltale signs. By identifying these signs" early, you can dramatically mitigate your risk, by, for example, timely replacement of the vendor.
First, the author explains 10 warning signs a vendor is failing:
Then, they present a scoring system you can use: 1-2: Remain vigilant, but don't panic 3-5: Create a solid Plan B 6-10: Locate your nearest exit. Read it.