How do I spot the hidden risks in due diligence?

You can run diligence now, but the buried risks and the quiet red flags still get past you sometimes. Those are the hardest part of the job, the things designed or destined to stay hidden. That they slip by does not mean you are careless; it means you have reached the part that separates good from expert. Finding what is buried is a skill of knowing where things hide and what a real red flag looks like beneath a clean surface. That pattern sense comes from cases, especially the ones that went wrong, yours and others'. Study the deals that blew up and you learn where to look next time. When you review a deal, deliberately ask where the trouble would be buried in one like this, and go look there on purpose. Keep a running list of the red flags you have seen missed, yours and in the news. That list sharpens the instinct for the next buried risk far faster than experience alone.