01
Acknowledge receipt
A brief reply lets me know the message has reached a human.
GreySurface / UK
Received a report from Nick at GreySurface?
Use this page to verify the sender, understand what to expect, and route the report safely.
Verify the sender
The safest way to verify an email is to start a new message using one of the verified addresses published on this website rather than relying only on the reply address in the message you received.
I do not provide a public report lookup because it could reveal or allow enumeration of private disclosure references.
- Display name
- Nick | GreySurface
- Primary email
- nick@greysurface.co.uk
- Report reference
- A message may include a GreySurface reference beginning with GS
- Verified senders
- Primary contactnick@greysurface.co.ukDisclosure emailgreysurface-security@proton.meVerified aliassecurity_greysurface@pm.me
What a genuine GreySurface report will do
- Identify the affected product and security boundary
- Explain the observed impact
- State how testing was limited
- Provide enough information for technical triage
- Redact unnecessary third-party information
- Offer secure transfer of sensitive evidence
- Offer clarification and fix validation
What it will never require
- Payment before receiving the report
- Payment before receiving reproduction details
- Immediate transfer to an unfamiliar payment address
- Passwords, access tokens, API keys, or production credentials
- Running an executable, macro, or unknown archive
- Payment in exchange for silence
- A publication or regulatory threat tied to payment
- Wide internal distribution of third-party personal data
What to do next
02
Route it confidentially
Send it to the application security, product security, engineering, or incident-response owner.
03
Provide a secure channel
Where raw evidence is needed, provide the company's preferred secure reporting route.
04
Confirm validation
Let me know whether the issue has been reproduced and whether more information is needed.
Are reports conditional on payment?
No. I supply reports without a fee or payment condition.
If your team validates a useful finding and chooses to recognise the research and write-up with a discretionary goodwill contribution, that choice does not affect access to evidence, remediation support, publication decisions, or fix validation.
Still unsure whether the message is genuine?
Start a new email using one of the verified addresses published on this site and include the report reference from the message you received.