Kaspersky is too smart to have such point, but their target markets might require different marketing.
> Security without open-sourcing is impossible
is just as documented an assertion as
> opensource is insecure by design
The two are completely orthogonal.
P.S. Security without open-sourcing is impossible. Although, dunno how for other countries, but here in Russia some people have a different point of view.
Some people believe that “opensource is insecure by design, because everyone can see the code”. Probably Kaspersky has the same point.