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Offensive security,delivered globally bytrusted experts

Delta Cybersecurity runs adversary-grade testing for organisations across every time zone. Tailored engagements, fast turnaround, and reporting written by senior consultants who have spent their careers breaking into complex environments.

  • Engagements delivered worldwide
  • Fastest quote
  • Senior consultants only

Engagement snapshot

Penetration Testing ยท Multi-region

Active
24 h
Quote after the scoping call
72 h
Start date allocation
10+
Countries served
100%
Senior consultants

Certified by

  • Offensive Security Certified Professional (OffSec)
  • Offensive Security Experienced Penetration Tester (OffSec)
  • Certified Information Systems Auditor (ISACA)
  • AWS Certified Solutions Architect (Associate) (AWS)
  • AWS Certified Security (Specialty) (AWS)
  • Certified Red Team Professional (Altered Security)
  • Red Team Operator (Zero Point Security)
  • Offensive Security Certified Professional (OffSec)
  • Offensive Security Experienced Penetration Tester (OffSec)
  • Certified Information Systems Auditor (ISACA)
  • AWS Certified Solutions Architect (Associate) (AWS)
  • AWS Certified Security (Specialty) (AWS)
  • Certified Red Team Professional (Altered Security)
  • Red Team Operator (Zero Point Security)

Why Delta

The rigour of a specialist firm, the pace of a partner who answers

Security teams choose Delta because the engagement is as well run as the testing itself: clear scope, senior execution, and findings you can act on the same week.

Worldwide delivery

Remote-first engagements across EMEA, the Americas and APAC, coordinated in your working hours.

Offensive specialists

Consultants who spend their working lives on the attacking side, not generalists rotating through security.

Transparent communication

Named point of contact, live findings channel, and critical issues reported the moment they are confirmed.

Rapid execution

Short lead times and disciplined scheduling so security work never becomes the blocker in your roadmap.

Flexible engagement models

One-off assessments, retained testing capacity or embedded support alongside your internal team.

Reporting that stands up

Evidence-led findings with reproducible steps, business impact and remediation your engineers can action.

Senior consultants only

Every engagement is executed by experienced testers. No junior staffing behind a senior proposal.

Our commitments

  • Quote within 24 hours of the scoping call, with no drawn-out procurement cycle.
  • Testing allocated within 72 hours once the engagement is confirmed.

Applies to standard scopes agreed during the initial call.

Team's experience

Countries served
10+

Countries served

Years average experience
10+

Years average experience

Engagements delivered
500+

Engagements delivered

Manual-led testing
100%

Manual-led testing

Services

Four practices, each with its own standard of rigour

Every engagement is scoped around a question worth answering, then executed to the methodology and depth of evidence that the practice demands.

Adversary simulation against your real defences

Objective-driven operations that measure how your people, processes and detection capability hold up against a determined attacker.

  • Red Team

    Goal-oriented, stealth-focused attack simulation covering the full intrusion chain, from initial access to objective.

  • Purple Team

    Collaborative exercises run side by side with your defenders to tune detection rules and validate response playbooks.

  • Social Engineering

    Pretext-based attacks against staff and physical controls to measure human resilience under realistic pressure.

  • Phishing Campaigns

    Targeted email and multi-channel campaigns with detailed metrics on click, credential and reporting behaviour.

Not sure which engagement fits? We will tell you honestly on the scoping call.

Request a quote

About us

Built by consultants who had already done the work

Delta Cybersecurity was founded after years of delivering offensive security engagements internationally for banks and insurers, hospital groups, public administrations, technology companies and operators of critical infrastructure.

That work took our consultants across borders, regulatory regimes and technology estates: legacy mainframe-backed platforms in one engagement, multi-account cloud and container environments in the next. The pattern we kept seeing was the same: strong methodology, inconsistent delivery.

We built Delta to correct that. The firm brings together specialists with complementary expertise across red teaming, application security, infrastructure, cloud and hardware, so each engagement is led by someone who has already solved that specific problem before.

Sectors we work in

  • Financial services
  • Healthcare
  • Government
  • Technology
  • Critical infrastructure
  • Large enterprise

Multi-country

Delivery footprint

Cross-discipline

Team composition

Regulated

Environments

We take on the engagements we are genuinely qualified to run, and say so when we are not the right firm for the job.

FAQ

Straight answers before you commit

Still have a question? Ask it directly in the form below and a consultant will answer, not a sales team.

Get started

Tell us what you need tested

A short scoping call is usually enough for us to understand your environment, agree a realistic scope and send a fixed-price proposal within 24 hours.

  • A trusted partner with deep offensive security expertise
  • Reliable delivery, on the dates we commit to
  • International experience across regulated industries
  • Clear communication from first call to final debrief
  • A long-term security partner, not a one-off vendor

Ready for a fixed-price proposal? Send your requirements and we will come back soon.

Request a quote
Service needed

Select all that apply. You can refine the scope on the call.

Red Team Activities

Penetration Testing

Security Assessments

Security Management

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