A continuous alternative to Cobalt’s pentest marketplace

Cobalt runs human testers on a project cadence and delivers a report. Greywatch runs an AI harness continuously - a security engineer proves every finding before you see it.

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A 20-minute conversation with a founder. No pitch deck, no SDR.

Cobalt
90d
Point-in-time test, project cadence. A report lands; the product keeps shipping.
Greywatch
24/7
Continuous AI harness with a human proving every finding. Always current, because your surface never stops changing.
No strawman

What Cobalt is good at

Straight read. Cobalt built something real - this is not an attack on a stale position.

Human depth
Cobalt Core is a vetted network of human pentesters. The platform makes scheduling and retesting far easier than a legacy consultancy engagement.
Compliance fit
SOC 2, PCI, and similar requirements can be satisfied by a named human pentest from a recognized platform. Cobalt was built for this use case.
Enterprise footing
Mid-market and enterprise teams with a dedicated security function to manage an engagement and act on a report. Cobalt’s structure suits that context.
The gap

Where the model shows its age

The limitation is not the testers. It is the cadence and what the output actually is.

Point-in-time, not continuous
A pentest is true on the day it ran. 90 days later describes a product that no longer exists. Cobalt’s shift toward an autonomous pentest acknowledges this directly.
A report, not proof you can act on
The output is a list. Greywatch proves it: every finding ships with the exact request that worked, the data it exposed, and reproduction steps your engineers can replay. A report of maybes is a different product.
Marketplace variance
Your result depends on which testers you drew that cycle. A harness that sharpens with every engagement gives you a consistent, always-on adversary instead.
How it works

1 framework. 3 motions.

Every engagement runs the same loop. Nothing leaves without human validation.

01
Find it
A continuous AI harness attacks at machine speed. Every candidate is filtered by a security engineer first. A few real, prioritized issues - not 1,000 low-signal tickets.
02
Prove it
We show you the exploit. The exact request that worked, the data exposed, step-by-step reproduction. The sharpest line between us and a report of maybes.
Reproduction, as delivered
$ curl -H "Auth: <user-a>" /api/records/8815
← 200 OK · returns record 8815
user-a is not the record owner. Count recorded, 1 sample redacted, nothing extracted.
03
Fix it
Every finding ships with a recommended fix from the engineer who exploited it. Want it off your plate? A forward-deployed engineer implements it in your repo - optional, on your call.

Learn more: how the harness works →

Right fit

Who each product is built for

Cobalt
Mid-market and enterprise with a compliance-driven pentest requirement and a security function to manage it. Best for a named human pentest against a specific audit line.
Greywatch
Series A-C healthtech, fintech, and B2B SaaS teams shipping fast, holding real customer data, without a dedicated security function. Continuous coverage, proof-first output.
From our customers

What it looks like from the other side.

“

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, and now we run their continuous security platform on all our assets. Highly recommend working with them!

Adarsh Tadimari
Adarsh Tadimari
Co-founder & CTO, Plotline
Common questions

Questions about switching from Cobalt

Is Greywatch a Cobalt alternative?
Yes - if what you want is continuous, proven, exploitable findings rather than a scheduled human pentest report. Greywatch runs an always-on AI attack harness with human validation, built for data-sensitive startups.
What is the difference between Cobalt and Greywatch?
Cobalt: human pentester marketplace, project cadence, compliance-oriented report - mid-market/enterprise. Greywatch: continuous AI harness with human validation, a few real reproducible findings plus a fix, built for Series A-C startups.
Does Greywatch help with SOC 2 or HIPAA?
Greywatch proves what is exploitable in production - a stronger signal than a point-in-time report. Whether it satisfies a specific audit line item depends on your auditor - talk to us.
Do I have to let you fix the vulnerabilities?
No. Every finding comes with a recommended fix you can implement yourself. A forward-deployed engineer can implement it in your codebase - optional, only if you want it off your plate.
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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