5 security mistakes I see every startup CTO make
After years in cybersecurity, I keep seeing the same patterns that get companies breached. Here are the top 5:
1. "We're too small to be a target"
You're not. Attackers automate. They don't care about your revenue — they care about your unpatched S3 buckets and default credentials.
2. Treating security as a post-launch problem
By the time you "get around to it," you've already shipped secrets in your repo, opened your database to the internet, and given every employee admin access.
3. Ignoring dependency vulnerabilities
Your app is 10% your code and 90% open-source packages. One compromised dependency = game over. Most startups don't even run npm audit.
4. No incident response plan
When (not if) something goes wrong, "figure it out" is not a plan. You need a 1-page playbook before you need it.
5. Thinking compliance = security
SOC 2 is a checkbox exercise. It doesn't mean you're secure. It means you documented what you do. Those are very different things.
I write about this stuff every week at DRKMTN Intel — threat analysis, vulnerability breakdowns, and defense playbooks specifically for founders and CTOs who need to make security decisions without becoming full-time security engineers.
