> I came across a pretty serious security concern at my company this week. The ramifications are alarming. […] Then when I bring it to leadership, their agenda is to take these conversations offline, with no paper trail, and kill the conversation.
I was in a very similar position some years ago. After a couple of rounds of “finish X for sale Y then we'll prioritise those issue”, which I was young and scared enough to let happen, and pulling on heartstrings (“if we don't get this sale some people will have to go, we risk that to [redacted] and her new kids, can we?”) I just started fixing the problems and ignoring other tasks. I only got away with the insubordination because there were things I was the bus-count-of-one on at the time and when they tried to butter me up with the promise of some training courses, I had taken & passed some of those exams and had the rest booked in (the look of “good <deity>, he got an escape plan and is close to acting on it” on the manager's face during that conversation was wonderful!).
The really worrying thing about that period is that a client had a pen-test done on their instance of the app, and it passed. I don't know how, but I know I'd never trust that penetration testing company (they have long since gone out of business, I can't think why).
I wish I could recall the name of a pen test company I worked with when I wrote my auth system... They were pretty great and found several serious issues.
At least compared to our internal digital security group would couldn't fathom, "your test is wrong for how this app is configured, that path leads to a different app and default behavior" it's not actually a failure... to a canned test for a php exploit. The app wasn't php, it was an SPA and always delivered the same default page unless in the /auth/* route.
After that my response became, show me an actual exploit with an actual data leak you can show me and I'll update my code instead of your test.