Account view (the main view) - a summary table with one row per client, columns counting each alert type, and a totals row at the bottom. This is the triage view: it shows you at a glance which clients need the most attention this week.
List tab - every individual alert as its own row. This is the working view: filter, fix, acknowledge, repeat.
The Filter button narrows the list - to a single account, one alert type, a severity level, or just the unacknowledged ones - so you can focus on exactly the slice you care about.