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PLENDE

APT ATTACK SIMULATIONS

APT simulation: see if you can handle an adversary who plays the long game

We replay how advanced persistent groups operate: quiet entry, long-lived access and movement toward specific data. We test defenses built for fast attacks against an adversary who works for months.

Emulation of specific groups via MITRE ATT&CKA long-dwell access scenarioTesting detection of quiet, slow activityA full timeline with evidence

WHY IT MATTERS

The most dangerous attacker is in no hurry and makes no noise

Most defenses are tuned for a loud, fast attack. APT groups do the opposite: they enter quietly, wait, observe and only move when they are sure. That is how they stay undetected for months.

An APT simulation tests exactly that scenario. We replay the techniques of specific groups relevant to your industry and check whether your defense catches slow, drawn-out activity, not just one sudden incident.

WHAT WE DO

The full lifecycle of an advanced attack

01
Quiet entry
Targeted phishing or a vulnerability, chosen so as not to raise an alarm.
02
Maintaining access
Persistence mechanisms that survive a reboot and basic cleanup.
03
Slow lateral movement
Movement toward the objective spread over time, below the detection threshold.
04
Data exfiltration
We simulate data exfiltration in a way that tests egress monitoring.

We match the group and scenario to the real threat landscape for your sector.

OUR APPROACH

The patience and realism of a specific adversary

We do not replay an abstract attack, we replay how specific APT groups that really target your industry operate. Their techniques are publicly documented in MITRE ATT&CK, and they define the scenario.

We work slowly and quietly, exactly like a real adversary. That way the test measures the real ability to detect a long-lived presence, not the reaction to one sudden move.

COMPLIANCE

Proof of resilience against advanced, long-running attacks

APT simulations address regulatory expectations on testing the ability to detect and respond to serious threats.

NIS2
Evidence of the ability to detect and respond to advanced incidents.
DORA
Part of operational resilience testing against real adversaries.
ISO 27001
Validation of monitoring effectiveness and response over time.

STANDARDS & CERTIFICATIONS

We work to recognized methodologies, not gut feeling

Every project is run by certified pentesters and based on public standards. That makes the result repeatable, auditable and comparable across vendors.

Team certifications
OSCPOSCPOffSec
OSEPOSEPOffSec
OSWEOSWEOffSec
OSEDOSEDOffSec
OSWAOSWAOffSec
OSWPOSWPOffSec
BSCPBSCPPortSwigger
CPTSCPTSHack The Box
CBBHCBBHHack The Box
CWEECWEEHack The Box
CRTOCRTOZero-Point Security
CREST CRTCREST CRTCREST
CREST CPSACREST CPSACREST
ISO 27001 LAISO 27001 LAISO/IEC
Azure Security EngineerAzure Security EngineerMicrosoft
Security Operations AnalystSecurity Operations AnalystMicrosoft
Security AdministratorSecurity AdministratorMicrosoft
OSCPOSCPOffSec
OSEPOSEPOffSec
OSWEOSWEOffSec
OSEDOSEDOffSec
OSWAOSWAOffSec
OSWPOSWPOffSec
BSCPBSCPPortSwigger
CPTSCPTSHack The Box
CBBHCBBHHack The Box
CWEECWEEHack The Box
CRTOCRTOZero-Point Security
CREST CRTCREST CRTCREST
CREST CPSACREST CPSACREST
ISO 27001 LAISO 27001 LAISO/IEC
Azure Security EngineerAzure Security EngineerMicrosoft
Security Operations AnalystSecurity Operations AnalystMicrosoft
Security AdministratorSecurity AdministratorMicrosoft
Methodologies
MITRE ATT&CKThreat intelligencePTES
Team certifications
OSEPCRTOOSCP

We share the full list of certifications and standards on request, together with a sample test scope.

HOW WE DO IT

An operation run over time

01
Group selection
We match a real adversary and its techniques to your industry.
02
Entry
We gain quiet entry via a chosen, realistic route.
03
Persistence
We build a lasting presence resilient to basic cleanup.
04
Movement and objective
We move slowly toward the objective, testing detection.
05
Report
We replay the timeline and show where defense had a chance to react.

EVIDENCE

Numbers behind every promise

Every test is run by certified pentesters, and we document the result with reproduction steps, evidence and a verified remediation path. Proof, not a promise.

500+
security tests and audits completed
5.0
average score from 10 verified Clutch reviews
20+
offensive certifications across the team
01
Certified team
20+ offensive certifications across the team (OSCP, OSEP, OSWE, CREST). Tests are run by our people, not anonymous subcontractors.
02
Manual testing
We work by hand to PTES and OWASP, chaining seemingly small flaws into a real, proven attack path.
03
Evidence, not a promise
Every finding comes with reproduction steps and a working proof. A report that holds up in front of an auditor.
04
Retest included
After fixes are deployed we confirm in writing that the gaps are closed. We do not vanish once the PDF is sent.

KNOWLEDGE

APT adversary emulation in practice

What APT emulation is

APT emulation means reproducing how a specific, advanced adversary operates, not a random attacker. We take on the role of a group that realistically threatens your industry and repeat its characteristic techniques.

Unlike an ordinary test that seeks as many flaws as possible, APT emulation recreates a coherent scenario of a long, quiet attack. It checks whether you can cope with an adversary that has time, patience and a clear objective.

How we reproduce a real adversary

Based on threat intelligence we select an actor relevant to your sector and map its techniques to MITRE ATT&CK. We then reproduce them in a controlled way, from gaining access to reaching the objective.

We focus on what sets an advanced adversary apart: persisting in the network, evading detection and moving without raising alarms. These stages are what separate a serious attack from a one-off break-in.

What emulation tests that an ordinary test cannot

APT emulation shows how your defense performs over time, not at a single moment. We check whether you detect a persistent presence in the network and whether you respond before the adversary reaches the objective.

It often turns out that individual vulnerabilities are under control but visibility over the whole attack path is missing. Emulation reveals the detection and response gaps that a classic test leaves invisible.

What you get and when it makes sense

The report describes the full scenario: the emulated actor, the techniques used, the detection points and recommendations to strengthen the defense. We add an ATT&CK coverage map and conclusions for the security team.

APT emulation makes sense for higher-maturity organizations and for entities that are a real target of targeted attacks. If you are still building the basics, start with a penetration test and consider emulation afterwards.

FAQ

Common questions

How is an APT simulation different from Red Team?

They are related services. An APT simulation puts more emphasis on long dwell time and replaying a specific group, rather than just reaching the objective by the shortest path.

How do you know which groups attack us?

From public and industry threat intelligence. We select groups that really target your sector and replay their documented techniques.

Is it safe for our data?

Yes. We simulate exfiltration on agreed, non-production data or markers, without removing real information.

How long does such a simulation take?

Usually several weeks, because realism requires spreading activity over time. We set the schedule together.

RELATED

Related reading

CASE STUDIES

Case studies in this area

REFERENCES

“The project was delivered professionally and on time, with a strong grasp of both technology and business. We were impressed by their cybersecurity expertise and partnership approach.”
M
Mateusz Widenka
Head of Delivery, Order Group
Clutch★★★★★5.0 · 10 reviewsRead all reviews on Clutch

FIRST STEP

Start with a free consultation

Tell us what you want tested. Within 24 hours you get a proposed scope and next steps. You talk to a consultant who understands the technical side, not a salesperson.

Get in touch
No obligation · we reply within 24 h · your data stays confidential
Methodology
PTES · OWASP
Team
20+ certifications
Rating
5.0 on Clutch
What you get
A scope proposal matched to your risk
A report with evidence and reproduction steps
Remediation priorities by real impact
A retest after fixes are deployed
Asia, ElementricaKacper, ElementricaGrzesiek, Elementrica
A member of our team runs the call, and we reply within 24 hours. No bots, no call center.