Why investors care about security
When a VC invests in a fintech startup, they're betting that the technology works and that it won't expose them to regulatory, financial, or reputational liability. A critical vulnerability in your product isn't just a technical bug — it's an investment risk.
Here's what has changed: five years ago, security was a post-Series B concern. Today, early-stage fintech investors (especially those who've seen a portfolio company get breached) ask for security evidence before term sheets are signed. The question isn't whether they'll ask — it's whether you'll be ready when they do.
What investors actually look for
A third-party assessment from a credible firm, not an internal review. They want to see that someone independent tested your application and that critical findings were remediated. An executive summary of your risk posture, not a 200-page technical dump.
What raises red flags
No security assessment at all. Or a scanner report with hundreds of unresolved "medium" findings that your team hasn't triaged. Or testing done by your own developers reviewing their own code. Investors recognize compliance theater.
What demonstrates maturity
A focused manual assessment with findings ranked by business impact, clear remediation steps, and evidence of fixes. Bonus: a retesting report showing that your team shipped fixes quickly and effectively.
The cost relative to your round
A penetration test costs a fraction of 1% of a typical Seed or Series A round. Compare that to the cost of a breach discovered during due diligence — which typically kills the deal entirely, not just reduces the valuation.
The ideal timeline
Plan your security assessment relative to your fundraising timeline, not as a last-minute scramble:
6 weeks before diligence
Engage Simpa Labs for scoping. We map your product surface, agree on scope, and schedule the test. This takes 1–2 days.
4–5 weeks before diligence
Testing runs for 5–10 business days. We deliver the report within 2 days of completing testing.
2–3 weeks before diligence
Your engineering team remediates critical and high-severity findings. We're available on Slack during this period to answer questions about fixes.
1 week before diligence
We retest to validate fixes and issue an updated report. You now have a clean, credible security assessment ready for investor review.
The assessment that saved a round
A Nigerian payments startup engaged us 8 weeks before their Series A close. We found a critical IDOR vulnerability that allowed any authenticated user to view any other user's complete transaction history via the mobile API. The team fixed it in 3 days. When the lead investor's technical advisor ran their own assessment two weeks later, they found a clean product and a professional remediation trail. The round closed at full valuation.
Raising a round? Get your security assessment done before investors ask for one.
Get a Pre-Fundraise AssessmentWhat to prioritize if you have limited budget
If you can't test everything before your round, focus on the surfaces that carry the most risk:
- Authentication and session management: Account takeover is the #1 risk investors worry about. Ensure your login, recovery, and session handling are solid.
- Payment and transaction logic: If you handle money, this is non-negotiable. Race conditions, negative amount handling, and webhook validation need to be tested.
- API authorization: BOLA/IDOR vulnerabilities are the most common and most damaging class of API flaw. Test that users can only access their own data.
- Data handling: Investors will ask about PII protection. Ensure BVNs, account numbers, and transaction data aren't leaking through logs, exports, or error messages.
Related services and resources
For startup-specific engagement models, see security testing for startups. Understand how penetration test pricing works to budget accurately. For a developer self-assessment, use our fintech security checklist. If your round involves CBN-licensed entities, see our CBN compliance guide.
Frequently asked questions
When should I get a security review relative to my fundraise?
Ideally, 4–6 weeks before you expect to enter due diligence. This gives you time to get the report, fix critical findings, and get retested — so you hand investors a clean report, not a list of open vulnerabilities.
What if the test finds critical vulnerabilities?
That's the point. Finding them before an investor's diligence team (or worse, an attacker) does is dramatically better. We provide engineering-ready fixes for every finding. Most critical issues can be remediated in 1–2 sprints.
Can I share the Simpa Labs report directly with VCs?
Yes. Our reports include an executive summary written for non-technical stakeholders, a risk posture overview, and detailed technical findings. Many of our clients share the executive summary with investors and keep the full technical report for their engineering team.
We're pre-Seed. Is it too early?
If you're moving real money or handling sensitive PII (BVNs, bank account data), it's not too early. We offer scoped engagements designed for early-stage budgets that focus on your highest-risk surfaces.