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Application Security

Vibe Coding: The Creativity Accelerator That Grows Your Security Debt

Laurent Hausermann
Laurent Hausermann |

You’ve seen it everywhere this year: teams “vibe coding” — riding the flow, using AI copilots to spin up prototypes in minutes. It feels like magic. But it’s also a silent risk vector.

In this post, we’ll argue that vibe coding and AI-assisted prototyping can supercharge creativity — and multiply security debt unless tamed by lightweight guardrails. Your software business can (and must) have both velocity and safety.

What Is “Vibe Coding” — and Why Is It Exploding?

“Vibe coding” refers to an approach where developers rely on generative AI to sketch, prototype, and iterate in real-time, often with minimal upfront design or review. AI will generate Python code, ReactJS component or Typescript functions.

The promise is high: coding in the flow and removing hours of documentation review and careful, thoughtful design. Vibe coding momentum is irresistible. Here are some stats:

  • AI models can solve 60% of the SWE-Bench benchmark - a hard-coding challenges benchmark -, demonstrating their core software engineering skills
  • Among YC startups in 2025, 95% of their code is reportedly generated by AI!

Such a shift in adoption over the last year occurs only when productivity gains are substantial. But here’s the catch: the faster you build, the quicker you can accumulate invisible liabilities.

When Creativity Accelerates Insecurity

AI-assisted prototyping is powerful. It removes friction, lets developers explore ideas rapidly, and builds faster. But AI models are not yet security-aware design agents. They operate by pattern recognition over training data, not posture analysis or threat modeling.

As a result:

  • Vulnerable patterns might be reproduced: Studies show that nearly half of AI-generated suggestions contain flaws, such as missing input validation or misconfigured authentication.
  • Secrets and keys leak inadvertently: AI assistants sometimes “helpfully” embed API keys, tokens, or credentials.
  • Overconfidence: Developers may accept AI-generated code “because it works,” skipping critical reviews or threat thinking.
  • Hallucinated or misnamed dependencies (“slopsquatting”) emerge: AI may suggest a package that doesn’t exist — or worse, one that was maliciously published later.
  • Reproducing legacy vulnerabilities: AI is trained on the code we’ve already written. If your training corpus included vulnerable code (e.g. open-source with known CVEs), those same patterns can be echoed into your codebase.

A recent paper titled “When Developer Aid Becomes Security Debt” evaluated 12,000 actions by autonomous coding agents and found that 21% of their trajectories included insecure actions. (arXiv)

Vibe coding accelerates productivity — but it also accelerates security debt.

The Exponential Threat of Unchecked Security Debt

Let me make this clear: security debt compounds faster than feature debt. Why?

  • One missed vulnerability today (e.g., missing rate limiter on login) can cascade into multiple attack vectors (credential stuffing, account takeover, API abuse).
  • As your app grows, small, outdated, and insecure primitives become exposed as newer entry points.
  • The cost to fix vulnerabilities after release or retroactively is orders of magnitude higher than catching them early.
  • In AI-assisted development, a flawed snippet can be copied, reused, and propagated across modules — multiplying the blast radius.

In effect, vibe coding without checks can turn your security debt into a runaway liability.

Closing: Why CTOs & AppSec Should Lean In — Not Push Back

If you’re a CTO or AppSec lead, here’s how to frame this to your teams:

  • You’re not the flow police. You’re a remediation enabler: your goal is to enable velocity safely. You need to focus on remediation tasks to help developers to fix faster.
  • Security is not a blocker — it’s insurance. You’re building resilience, not slowing things down. Being agile is in the developer mindset, make security an agile practice as well.
  • Debt is cumulative. A feature pushed fast without guardrails is not “good enough”—it’s capital you’ll pay interest on later.

Vibe coding is real, powerful, and here to stay. But in 2025 and beyond, it cannot be allowed to run wild.

The organizations that balance creative flow + application security will dominate — the ones that let debt roam unchecked will wake up to breaches, technical overload, and loss of trust.

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