API Security

Make real API abuse paths visible with proof.

Eresus validates object-level authorization, token lifecycle, rate limits, schema leakage, and microservice trust-boundary risks across REST, GraphQL, SOAP, gRPC, and WebSocket surfaces.

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Best fit

This engagement creates value fastest for teams like these.

Security and engineering leadership

Teams that need exploit-backed proof before they reprioritize application, API, cloud, or identity work.

Product teams with customer-facing risk

Organizations shipping auth-heavy, multi-tenant, regulated, or internet-exposed systems where logic and authorization flaws matter.

Buyers who need proof, not alert volume

Programs that want reproducible findings, remediation direction, and a closure path instead of scanner noise.

Scope

REST, GraphQL, SOAP, gRPC, and WebSocket coverage

OAuth, JWT, token, and session controls

Object/function-level authorization tests

Gateway, microservice, and service-boundary abuse scenarios

Risk signals

BOLA/IDOR access to another customer

Mass assignment and role escalation

GraphQL introspection and schema leakage

Rate limit, replay, and token abuse

Outcomes

API endpoint risk map

Executable request/PoC evidence

Authz middleware and policy guidance

Retest-ready validation checklist

Engagement model

Not scanner output. Offensive work that produces proof.

Scope and objective

We align assets, workflows, user roles, testing windows, and safe operating boundaries before execution starts.

Expert validation

Eresus analysts validate exploitability and business impact instead of forwarding automated scanner output.

Proof, fix, retest

Each finding ships with evidence, impact, remediation guidance, and retest steps so teams can close risk quickly.

FAQ

The questions buyers want answered early.

How do you scope this engagement?+

We start from assets, business workflows, authorization boundaries, and the attack paths that could create material risk. Scope is shaped around exploitability, not checklist volume.

What do we receive at the end?+

You receive proof-backed findings, business impact framing, developer-ready remediation guidance, and a retest path for closure.

Do you help with remediation and retest?+

Yes. We work through remediation direction and validate critical fixes so the team can close risk without guesswork.

We tie risk to business impact.

Findings do not stop at severity labels. We explain which customer workflow, data class, or operational objective is affected.

Deliverables work for engineers and executives.

Engineering teams get reproducible proof and remediation direction; leadership gets the risk narrative, priority, and closure status.

Related proof

Research and advisories that support this service motion.

Related services

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Research

Let’s scope this work against the surface that matters most.

Whether this starts as a pilot, a single application, a critical API, an AI agent flow, or a wider program, we start from the highest-impact surface.

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