I guess it depends how you count a release. I think these fast moving teams spend more time in production debugging than the QA team adds. Shipping it should not be the final determination of release time.

I wish more companies valued QA teams, then maybe I wouldn't get so many notices of security breaches and need to keep checks on my credit.

Security breaches are the responsibility of the InfoSec team. The QA team usually won't have the skillset to find security issues.

Or maybe you still would. Are most QA folks actively looking for security issues?

Some of the bonehead stuff will be caught by QA, but there are folks on some QA teams that get security. Sadly, developers talk down about QA so much that the people we need on QA teams are not going to go there.

Not really. QA is functional. We have a product security team doing pentests on new and updated applications.