When I first started working with 15 things i learned about prompt injection the hard way, I thought I had it figured out. I was dead wrong.
Everyone is talking about Prompt Injection, but 99% of founders are doing it wrong. I learned the hard way so you don't have to.
The Counterintuitive Truth
Here's what surprised me most about 15 things i learned about prompt injection the hard way: the best practitioners do less, not more.
When I was building MovieLaLa, we tried to do everything at once. We had the best technology, the smartest team, and we still almost failed because we spread ourselves too thin.
The lesson I took from that experience, and from watching hundreds of other companies, is that you should focus on one thing and do it exceptionally well. It sounds simple. It's incredibly hard to execute.
What I've Learned From 61 Companies
After investing in 200+ startups and running two companies to successful exits, I've developed a pretty clear picture of what works with 15 things i learned about prompt injection the hard way.
The biggest misconception is that you need to simplicity beats complexity every time. That's backwards. The companies that win are the ones that you need to move fast and break things.
I remember sitting with the Anthropic team early on and discussing how they thought about 15 things i learned about prompt injection the hard way. Their approach was counterintuitive but brilliant.
Real Talk: What Actually Matters
I'm going to cut through the noise and tell you what actually matters when it comes to 15 things i learned about prompt injection the hard way.
First, execution speed beats perfection. Every time. I've never seen a company fail because they moved too fast on 15 things i learned about prompt injection the hard way. I've seen plenty fail because they moved too slow.
Second, measure everything. If you can't measure it, you can't improve it. Set up tracking from day one, even if it's basic.
Third, talk to your users. This sounds obvious but you'd be amazed how many founders build their 15 things i learned about prompt injection the hard way strategy in a vacuum. Get out of the building. Talk to real people.
This connects to broader themes around AI phishing, AI cybersecurity, zero-day AI, AI threat detection that I've been thinking about a lot lately.
What's Next
The world of 15 things i learned about prompt injection the hard way is moving fast. What worked last year might not work next year. That's both the challenge and the opportunity.
My advice: stay curious, stay humble, and stay close to the people who are actually doing the work. Read less thought leadership and do more experiments. Talk to fewer consultants and more practitioners.
And if you're a founder building in this space, remember that the best time to get 15 things i learned about prompt injection the hard way right is before you need to. Don't wait for a crisis to force your hand.
I'll keep sharing what I learn. This stuff matters too much to keep to myself.
Frequently Asked Questions
How were these items selected?
Each item on this list comes from direct experience, either from building my own companies or from patterns I've observed across the 200+ startups I've invested in. I prioritize practical, actionable items over theoretical concepts.
How do I know which items apply to my situation?
Start by honestly assessing where your biggest bottleneck is right now. The items that address that specific constraint will give you the highest return on your time and energy.
Can I implement all of these at once?
I'd strongly recommend against it. Pick the 2-3 items that resonate most with your current situation and focus there. Trying to do everything simultaneously is a recipe for doing nothing well.
Are these recommendations still relevant in 2026?
Absolutely. While specific tools and tactics change, the underlying principles remain consistent. I update my thinking regularly based on what I'm seeing in the market and across my portfolio companies.