The Vendors by incident likelihood widget is on the Status dashboard (MAX > Customer portal > Status tab).
This widget is a horizontal percentage breakdown of the customer's currently managed vendors by incident-likelihood rating: Critical, High, Medium, Low, and Unknown. This reflects the same latest-assessment data shown in the Incident Likelihood Trends table, presented as a proportional snapshot (percentage of the portfolio in each band) rather than a trend over time, making it easy to see at a glance how risk is currently distributed across the portfolio.
You can drill into the data by clicking a bar to see the vendor table filtered to the vendors it represents.