Penetration testing for startups

Most startups are not too small to breach. They are too small to recover from one.

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Median time to exploitation after disclosure
771 days
2018 — quarterly pentest was still a reasonable control
6 days
2023 — the quarterly pentest was already too slow
<4 hours
2024 — attackers move faster than your sprint cycle
The real problem

What most startups get wrong about security testing

They treat it as a compliance checkbox
A quarterly VAPT is calibrated to a world where the median time from vulnerability disclosure to exploitation was 771 days. In 2023 that number was 6 days. In 2024 it was 4 hours. A 90-day-old pentest report is a historical document - not a description of your current attack surface.
They assume their stack is too boring to target
Attackers do not hand-pick interesting targets. They run automated scans at scale and work the results. If you have an internet-facing API and user data, you are in scope for automated exploitation - regardless of how well-known your company is.
They confuse scanning with testing
A scanner runs pattern matching against known vulnerability signatures. It will find the textbook SQL injection. It will not find the IDOR in your API that lets any authenticated user read any other user's invoices. Logic flaws require an adversarial perspective: actually trying to access what you should not be able to access.
What you actually need

What startups actually need from security testing

Not a 200-page PDF. Not 1,000 findings that require a dedicated security engineer to triage. Not a point-in-time test that is obsolete by the time the report lands.

01
Continuous coverage
Security that runs as often as the pipeline ships. Every new endpoint, every new integration, every new service is in scope within hours of deployment - not at the next quarterly review.
02
Prioritized findings
3 confirmed critical vulnerabilities your engineers can fix this sprint. Not a backlog that competes with product roadmap for the next 6 months.
03
Proof, not flags
A finding worth fixing comes with the HTTP request that worked, the data it exposed, and reproduction steps your engineers can run. If a security vendor cannot show you the exploit, they cannot tell you what your real risk is.

What continuous penetration testing is, in detail →

How it works

How Greywatch works

01
Continuous
Greywatch's AI agents run continuous offensive testing against your live product. External attack surface, API endpoints, authentication flows, authorization logic. Machine speed, continuous coverage, same attack vectors an adversary would use.
02
Reviewed
A security engineer reviews every finding before it reaches you. What you receive: a few real, exploitable, business-critical vulnerabilities. No false positives. No noise. Proof, not a flag.
Finding, as delivered
$ curl -H "Auth: <user-a>" /api/invoices/8815
← 200 OK · returns invoice owned by user-b
IDOR confirmed. Count recorded, 1 sample redacted, nothing extracted.
03
Reproducible
Each finding carries the exact request that worked, the data it exposed, reproduction steps, and a recommended fix written by the engineer who exploited it. Not generic remediation guidance - a specific code change.
Comparison

How Greywatch compares for startups

Quarterly VAPTScanner (Aikido, Snyk)Greywatch
CoveragePoint-in-timeContinuousContinuous
Human judgmentYesNoYes
Finding volume50–200500–1,000+3–10 critical
Proof of exploitReport onlyFlag onlyExact request + data
Right for startups?Outdated fastRequires triage teamBuilt for no dedicated team
Proof

Results

31 companies
have confirmed critical findings from Greywatch's AI agents in the last 7 days. 100% of those criticals would have passed a standard SOC 2 review.

"We were focussing on our usual product roadmap and didn't think beyond our quarterly VAPT reports. Greywatch proactively found exploitable vulnerabilities our usual vendor never caught."

Adarsh Tadimari — Co-founder & CTO, Plotline

Get in touch

Talk to the founder.

Tell us what you're building and what you're worried about. You'll hear back from a founder, not a sales rep.

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Frequently asked

Do startups really need penetration testing?
Yes - more urgently than enterprise. Enterprise companies have dedicated security teams and breach response plans. Startups have none of that, and the consequences of a breach are existential at the Series A-C stage. The attack surface is real regardless of company size.
What is the difference between penetration testing and a vulnerability scan?
A vulnerability scan runs pattern matching against known vulnerability signatures. Penetration testing involves actively attempting to exploit vulnerabilities in your specific application. The scanner finds the textbook SQL injection. The pentest finds the IDOR that the scanner cannot detect.
How often should a startup run a penetration test?
Continuously - same cadence as your deployment pipeline. The exploitation window has collapsed from 771 days in 2018 to 4 hours in 2024. If you're shipping multiple times per week, a quarterly test leaves months of unexamined attack surface between reviews.
How much does penetration testing for startups cost?
Traditional pentests typically run $5,000-$25,000 for a point-in-time engagement. Greywatch runs continuous offensive testing rather than a one-off test, so pricing depends on your attack surface and cadence. Talk to a founder about scope.
Will penetration testing break my application?
No. Greywatch runs external offensive testing - the same perspective an adversary has. We probe for vulnerabilities; we do not destructively exploit them. The test is non-destructive and runs against your live environment with no interruption to your users.