Sygnum · Vulnerability Disclosure

Sygnum Vulnerability Disclosure

Vulnerability disclosure

Sygnum runs a coordinated vulnerability disclosure program on Hackerone. A dedicated security contact is published.

CompanyBankingDigital AssetsCryptocurrencyCustodyTradingStakingTokenizationSettlementMarket DataFinancial-ServicesSwitzerlandSingaporeB2B

Program: Hackerone

Disclosure Policy

Security Contact

Contact

mailto:security@sygnum.com

Source

Vulnerability Disclosure

generated: '2026-08-29'
method: probed
source: https://www.sygnum.com/.well-known/security.txt
http_status: 200
program:
  security_txt: true
  policy_url: null
  bug_bounty: false
  platform: null
contact:
- mailto:security@sygnum.com
document: well-known/sygnum-security.txt
content: |
  # Our security address
  Contact: mailto:security@sygnum.com
note: >-
  Sygnum serves a valid RFC 9116 security.txt with a security contact address. It carries a
  Contact field only — no Policy, Encryption, Preferred-Languages, Canonical or Expires
  field — so there is a reporting channel but no published disclosure policy, safe-harbour
  statement or bug-bounty programme. Searches of www.sygnum.com and the major bounty
  platforms (HackerOne, Bugcrowd, Intigriti) found no Sygnum programme.
caveat: >-
  www.sygnum.com sits behind a Cloudflare bot challenge that answers 403 to browser-style
  User-Agents; the file is served normally to a plain probe User-Agent, which is how it was
  read and verified twice (www.sygnum.com and sygnum.com, both HTTP 200, 58 bytes).
evidence:
- url: https://www.sygnum.com/.well-known/security.txt
  status: 200
- url: https://sygnum.com/.well-known/security.txt
  status: 200

Work with this as data

Every security artifact here is available over the APIs.io API and to AI agents over MCP.

MCP server

One button, every client — Claude, Cursor, VS Code and the rest.

https://apis.io/mcp

Tools for security posture

4 MCP tools reach this

find_securityBrowse and filter every security artifact in the catalog.
apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.
resolveTurn a domain, URL or GitHub org into the provider it belongs to.
find_cohortsEvery scored population of providers in the catalog.

All 92 tools →

Call it yourself

curl for this page

This security artifact

curl "https://apis.io/api/v1/security/sygnum-vulnerability-disclosure"

All security posture

curl "https://apis.io/api/v1/security?limit=25"

Discovery needs no key. Ratings and market analysis are Pro.

Get an API key

Free tier, no email required.

GitHub Google LinkedIn

A second provider on the same verified email joins the account you already have.