html Processes — Security255
Methodology · Elite Processes

A process
with no room
for error.

At Security255, quality is not a slogan — it is the natural consequence of how we work. Every project follows a clear process, with defined stages, signed commitments, and results you can read without needing cybersecurity expertise.

Audited process · Results that speak for themselves · Transparency from day one Every client receives complete documentation for each phase. No unnecessary jargon, no black boxes.
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No obligation · Response in less than 24 hours · Guaranteed confidentiality

ISO 27001 NIST Framework PTES / OWASP MITRE ATT&CK NIS2 Aligned GDPR / FADP
6
structured phases in every security engagement
<48h
to deliver the first executive report after diagnosis
100%
of commitments documented and signed before starting
NDA
confidentiality agreement before any access or analysis
Our Process

Six phases that turn
uncertainty into control.

Every Security255 project follows the same process, always adapted to each client’s context. We do not improvise or skip steps. What we agree at the start is exactly what we deliver at the end.

01

Initial Diagnosis & Scope

The first step is listening. We meet with the people responsible for the company to understand their real situation: what they protect, what concerns them, and what their limits are. From there, we define in writing exactly what we will review, what is out of scope, and how we will work. No surprises from day one.

Typical duration: 1–2 days · Deliverable: Scope Document
02

Reconnaissance & Intelligence Gathering

Before touching any system, we collect all available external information about your organization: which services are visible, which providers are connected, and what someone with malicious intent could see if they wanted to get in. This initial map is what separates a superficial analysis from an assessment that is truly useful.

Typical duration: 2–5 days · Deliverable: Attack Surface Map
03

Technical Analysis & Testing

This is where we perform the in-depth technical work: we review systems, applications, configurations, and access according to the agreed scope. Everything is recorded precisely: what we did, when, and what we found. During this phase, the client has access to a secure communication channel and can check the status of the work at any time.

Typical duration: 3–10 days · Deliverable: Detailed Technical Log
04

Results Analysis & Risk Classification

Once testing is complete, we analyze everything found and organize it by what truly matters: not how technical the issue is, but what the consequences would be if someone exploited it. Each finding receives a specific priority level so your team knows exactly where to start acting.

Typical duration: 1–3 days · Deliverable: Prioritized Risk Matrix
05

Executive & Technical Report

We deliver two reports designed for two different readers. The executive report translates everything into business language: what risk exists, what could happen, and what decisions must be made. The technical report guides the IT team step by step through each correction. Both are delivered encrypted and protected.

Typical duration: 2–4 days · Deliverable: Executive report + technical report
06

Follow-up & Remediation Verification

Our work does not end with report delivery. We support the client’s team to make sure each issue is clearly understood and effectively corrected. Then we verify again that the fixes actually work. This closes the loop and ensures the work has been worthwhile.

Typical duration: variable · Deliverable: Closing report & certification
Frameworks & Standards

We work with the
most demanding standards in the industry.

We do not invent the method — we build it on the industry’s most recognized standards, enriched by more than a decade of experience in real-world environments.

ISO 27001 / 27002

Our audits follow the international ISO 27001 standard. We review your current controls, identify gaps, and produce a clear plan toward certification or toward maintaining what you already have.

Security Management

NIST Cybersecurity Framework

We use the NIST framework to measure how prepared your organization is for a real threat: what it protects well, where the gaps are, and what it would do if something went wrong. The result is a clear diagnosis, not a generic report.

Maturity & Resilience

MITRE ATT&CK

We connect what we find in your systems with the real techniques attackers use today. That way, the recommendations are not theoretical — they are directly related to threats that exist and could affect you.

Threat Intelligence

OWASP & PTES

To review web and mobile applications, we follow OWASP international guidelines. For infrastructure, we apply the PTES standard. This ensures our coverage is complete and that the work can be independently verified.

Penetration Testing

NIS2 & GDPR

We assess whether your organization complies with European data protection and cybersecurity regulations. Our reports are written so both legal and technical teams can understand them, and they are valid for auditors and regulators.

Regulatory Compliance

SOC 2 Type II

We support organizations that need to prove to their clients that their data is well protected. We review the relevant controls, generate auditable evidence, and help them reach certification with minimal friction.

Audit & Certification
Operating Principles

What we do not negotiate
in any project.

Whatever the project, some things do not change. These are the commitments that make it possible for our clients to trust us with what they value most.

01

Everything is documented

Every action we perform during a project is recorded in detail: what we did, when, and what we found. This protects the client and our team, and makes it possible to trace any effect precisely if necessary.

02

Confidentiality without exceptions

We sign a confidentiality agreement before any access or technical conversation. Client information is not shared, is not stored without encryption, and is not used for any other purpose. Discretion is not a clause — it is part of how we work.

03

No unapproved interruptions

We work carefully, not hastily. Before any test that could affect your systems, we coordinate the most appropriate time with the client. The safety of what we do cannot compromise your business continuity.

04

Reports you can use

A report that no one understands or can implement has no value. Each finding comes with a concrete, prioritized recommendation, explained in language that both the technical team and management can read and act on.

Frequently Asked Questions

Direct answers
without beating around the bush.

It depends entirely on the scope. A web application pentest can be completed in 5–8 business days. A full security audit of enterprise infrastructure may require 3–6 weeks. What we guarantee is that the estimated timeline is communicated before starting, with a detailed work plan, and that any deviation is justified and approved by the client before execution.
Security255 works with a selective client portfolio. We are not looking for volume — we are looking for projects where we can deliver real and distinctive value. We work with large corporations and government institutions, as well as medium-sized companies that handle sensitive data or critical infrastructure. The selection criterion is not size, but a genuine willingness to improve security posture.
We have an urgent notification protocol active throughout all our projects. If we identify a critical vulnerability that is exploitable in real time, we immediately notify the client’s technical contact — before continuing with any other activity — so they can take containment measures. The client’s security always comes before project progress.
Yes. All our reports — both executive and technical — are produced in the client’s preferred language: Spanish, English, or French. For clients with international teams, we can produce reports in multiple languages simultaneously. We do not outsource translations: our team operates natively in all three languages.
Post-report remediation verification is included in all our projects at no additional cost. If a vulnerability persists unchanged after implementing our recommendations, we analyze it again free of charge. Our reputation is built on verifiable results, not commercial promises.

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with clarity?

Tell us about your situation in your own words. A senior specialist will read it and respond in less than 24 hours, directly and with no obligation.

Regulatory framework & compliance
GDPR LPD nFADP (Switzerland) ISO 27001
International network · Global operational network Presence in Europe, Latin America, and North America. Cross-border coordination for incidents that know no borders.
Response in less than 24 hours
A senior professional will review your case and contact you directly, without intermediaries.
No obligation and no sales pressure
The first conversation does not commit you to anything. It simply gives you the clarity you need to decide.
Absolute confidentiality from the first contact
Protected under NDA and applicable regulatory frameworks (GDPR / FADP / nFADP).

Request Assessment

Tell us about your company. We will handle the rest.

✦ Request received. A senior professional will contact you in less than 24 hours.

Information handled under NDA · GDPR · FADP / nFADP — absolute confidentiality.