Cybersecurity engineering

Follow the attack path. Prove it is closed.

Grayston examines how application logic, identity, APIs, data, cloud infrastructure, dependencies, and autonomous behavior can fail together, then fixes the reachable path and verifies the release boundary.

Application + APIIdentity + tenant isolationCloud + supply chainData + privacyAI + autonomous behavior
MODELAssets, trust, attacker goals
VALIDATEReachability, evidence, impact
CLOSERemediation, retest, release gate

Adversarial review console

Select the surface. Trace the decision to closure.

Each review area begins with the attacker's question, defines the evidence required to validate reachable risk, and ends with a release condition the engineering team can test.

IDENTITY BOUNDARY REVIEWCONTROLLED TESTING

Prove that identity cannot become authority by accident.

Review authentication, session lifecycle, role derivation, tenant selection, privileged routes, service identities, and administrative actions as one connected boundary.

Attacker questionCan I cross a role, tenant, or administrative boundary with a valid account?
Evidence requiredPolicy mapping, route traces, negative-path tests, session behavior, and authorization results.
Release conditionEvery privileged action is explicit, server-enforced, least-privilege, and regression protected.
OUTPUT
  • Identity + privilege map
  • Validated authorization findings
  • Remediation and retest evidence

Continuous red-team mindset

Attack paths cross team boundaries. The review does too.

Real compromises rarely respect the line between frontend, backend, cloud, identity, data, vendors, and autonomous workflows. Grayston traces how weaknesses can combine, then ranks work by reachable impact.

  1. 01

    Model what matters

    Assets, identities, sensitive actions, data, dependencies, trust boundaries, and business impact.

  2. 02

    Discover weakness

    Architecture, source, runtime configuration, APIs, cloud posture, dependencies, secrets, and operational behavior.

  3. 03

    Trace the chain

    Connect individual weaknesses into the path an attacker could actually reach.

  4. 04

    Validate impact

    Confirm the behavior safely, reject noise, preserve evidence, and assign defensible severity.

  5. 05

    Close and prove

    Fix the root cause, retest the path, add regression protection, and make release an explicit decision.

Review depth

Security work that ends in engineering action.

Scope can be targeted to a critical release or span the full system. Findings are useful only when the team can reproduce, prioritize, fix, and prevent them.

Architecture

Threat + abuse modeling

Assets, identities, trust boundaries, threat actors, misuse cases, sensitive operations, and business impact.

Application

Source + API review

Authorization, input handling, state transitions, business logic, integrations, webhooks, sessions, and abuse resistance.

Cloud

Infrastructure + supply chain

Environment separation, credentials, IAM, storage, network posture, dependencies, CI/CD, and deployment controls.

AI systems

Agent + model boundaries

Tool authority, data access, retrieval, memory, prompt injection exposure, approval policy, evaluation, and evidence.

Closure

Remediation + retest

Root-cause fixes, exploit-path retest, regression coverage, release gating, and evidence that the path stays closed.

Operations

Detection + response

Structured logs, alerts, triage, runbooks, recovery paths, post-incident learning, and operator-ready handoff.

Responsible disclosure

Report a security concern safely.

If you believe you found a vulnerability in this website or a Grayston-operated product, send the affected URL, reproduction steps, browser or device context, screenshots if useful, and the potential impact.

Report a security concern
Testing boundaries

Do not access, change, delete, download, or exfiltrate data that is not yours. Do not run destructive tests, denial-of-service tests, credential attacks, or social engineering.

Do not include passwords, tokens, private keys, regulated data, or sensitive third-party information in the initial report.

Grayston does not currently operate a paid bug bounty program.

Security that changes the release

Bring the system, the concern, or the finding.

Grayston will scope the reachable risk, the evidence required, and the engineering path to closure.