Ask HN: How to Improve My Team's Security Awareness?

I'm your average developer in your average IT firm that makes your conventional products. But these days, we have a customer who has security as his TOP requirement.

I heard the summary of the first meeting with our project manager. He seems OBSESSED with security. He even wants us to use specific technologies that he believes is secure.

I'm worried a bit about that, because an earlier technical discussion with my team rendered us not so security-aware (in my opinion of course). Worse, except for me, the team seems content with their background and knowledge.

I thought of asking for a security consultation service. Another thing is me self-studying, and by Socratic questioning, we get to acknowledge our lag.

Any additions is welcome.