Nullify automates software security to save engineering hours

A friend at a large company told me their AI agent already reviews code against internal guidelines, writes auto-tests, and quietly removes a lot of boring manual work.

Fintech of my choice: Nullify

When I heard that story, I had one immediate thought. If AI can be a strict code reviewer, why can’t it be a strict security reviewer too, the kind that never gets tired and never skips a checklist item at 2 a.m.

That is exactly what Nullify is building. An autonomous AI workforce that hunts for software vulnerabilities, triages them, generates exploits to prove they are real, and then produces merge-ready fixes for engineers to approve.

They raised a $12.5m seed round led by SYN Ventures, with participation from Black Nova VC. Their early adopters report saving over 48,000 engineering hours, resolving 450+ vulnerabilities, and getting to a 90% merge-ready rate on proposed fixes.

The positioning is smart. AI security engineers running 24/7, replacing four or more separate tools. In practice, it means fewer dashboards, fewer false positives bouncing around Slack, and a shorter path from when we might have a problem to the patch being merged.

The business logic is also clear. AppSec is not a one-time purchase. It is a recurring pain with recurring budgets, especially as software supply chains get more complex and teams ship more often. If Nullify can keep accuracy high and time-to-fix low, it becomes less like a tool and more like an always-on workforce you do not want to turn off.

From a fintech founder angle, I like this because security work has the same pattern as compliance. It is mandatory, it is under-resourced, and it punishes you when you do it late. In payments, investing, and any regulated product, the cost of a bad vulnerability is not just a bug. It is downtime, reputation, and sometimes regulators on the phone.

Every day, FinBox Solutions highlights one hand-picked fintech on the FinBox page, and the project with the most votes becomes Fintech of the Week.

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If I were running a product team today, I would at least pilot something like Nullify on one codebase and measure time saved and risk reduced over a month.

What is the biggest bottleneck in your security workflow right now: finding issues, prioritizing them, or getting fixes merged fast?

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