their hardware appliances are called Firepower now and looks like a large team. have they done anything big/new since the deal closed in 2013? do they have good sales and successful cloud native ports of their solutions now? their founder is still there.
the security BU from outside seems like a mosaic tile of large numbers of acquisitions over the years, each with their own history, solution, hw and sw. does csco just maintain them as cash cows or take it forward to next level?