Review, Remediation y Upgrades

Review

Evaluación técnica y de seguridad central

GreyBound Review is a technical and security assessment of a Bitcoin system that already exists: wallet, signing path, node, backend, indexer, or side chain. Do this before mainnet funds or a public launch. The client gets an executive summary, a risk register, a remediation roadmap, and a validation plan. This is not a public contest report.

Review is for architecture and trust boundaries. Remediation is for issues already named. Upgrade is for new features in a product that already runs.

El cliente recibe:

• Executive Summary (estado general del sistema, riesgos clave, prioridades inmediatas, readiness para el objetivo declarado)
• Findings / Risk Register (problema, componente afectado, impacto técnico, impacto de seguridad/fiabilidad, severidad, evidencia, condiciones para explotación/fallo, remediación recomendada)
• Prioritized Remediation Roadmap (hoja de ruta de remediación priorizada)
• Architecture / Engineering Recommendations (recomendaciones de arquitectura / ingeniería)
• Validation Plan (tests, validación de seguridad, checks de configuración, checks de regresión, re-review si es necesario)

Remediation

Remediación de issues técnicos y de seguridad

GreyBound Remediation fixes Bitcoin infrastructure issues the client already knows or that Review found. The work is code, configuration, architecture, and operations on the running system, then checks and handoff.

El cliente recibe:

• Scoped Fix Plan (lista acordada de issues, prioridad, criterios de aceptación y riesgo del cambio)
• Implemented Fixes (cambios de código, configuración, arquitectura y operaciones según corresponda)
• Verification Evidence (tests, checks de seguridad, checks de configuración y resultados de regresión)
• Change Documentation (qué cambió, por qué, cómo operarlo y residual risk si existe)
• Handoff for Follow-up (siguientes pasos claros, incluido re-check o re-review dirigido si hace falta)

Upgrades

Desarrollo de features y mejora de producto

GreyBound adds features to a Bitcoin wallet or signing stack that already ships. The work goes into the live codebase: descriptors, PSBT flows, multisig, hardware-signer paths, fee and coin selection, and the backend or indexer the wallet uses.

This is for

• a mobile, desktop, or extension Bitcoin wallet that already exists
• a signing service or non-custodial payments path that already exists
• Bitcoin or a side chain the client already runs

This is not for

• building a new wallet from nothing
• a template wallet for many chains

El cliente recibe:

• Feature Scope & Design (requisitos, interfaces, constraints y consideraciones Bitcoin/seguridad)
• Implementation on the Existing Product (features entregadas en el codebase vivo)
• Tests & Validation (cobertura unit/integration, checks relevantes de seguridad y protección de regresión)
• Documentation & Handoff (cómo funciona la feature, cómo operarla y cómo extenderla)
• Upgrade Path Notes (rollout, compatibilidad y readiness de producción del cambio)

What we need from you

To start, we need the running system:

• what is live today
• what must not break
• what you want changed or proved
• who can answer questions on the repo

If the system signs or moves bitcoin, we need enough of the signing path to trace one transaction from screen to bytes. If you cannot share that yet, say so. We will say what we can still do.

What the work is

A Review maps trust boundaries and names what can lose funds.

Remediation changes the running code or config and shows the check.

An Upgrade adds a feature in that same codebase.

What we decline

We do not produce a public audit PDF meant only for a launch page.

We do not take a chain we do not operate.

We do not build a new wallet from nothing for every network.

Email contact@greybound.tech. We reply in 1–2 business days.