FourCore ATTACK proactively tests your cyber defenses by emulating real-world threats and improve them with actionable insights in real-time.
The world's best security teams use FourCore to proactively mitigate risk with evidence.


















01/03
01 Assess
02 Validate
03 Improve
AI-powered threat intelligence maps your industry, region, and active threat actors so teams can prioritize real-world attack paths first. Instead of testing isolated techniques, you assess complete kill chains led by procedure based testing, giving evidence-backed clarity on where exposure is highest before adversaries exploit it.

02/03
01 Assess
02 Validate
03 Improve
Continuously emulate attacker behavior across your live defenses and correlate outcomes in real time across integrated controls. This shifts validation from quarterly snapshots to ongoing operational certainty, so detection, prevention, and response teams understand daily whether controls are genuinely performing against current threats.

03/03
01 Assess
02 Validate
03 Improve
When control gaps are found, FourCore delivers specific detection logic and mitigation guidance your team can immediately apply and verify. You can retest the same adversary behavior right away, compressing remediation cycles from weeks into hours and helping teams prove measurable improvement with every iteration.

FourCore ATTACK enables comprehensive bi-directional sharing and enrichment of emulated threats across the enterprise security ecosystem. This capability significantly reduces risk, enhances operational efficiency, and promotes a more open and integrated cybersecurity framework.
See all of our integrationsValidated hundreds of TTPs
Exposures discovered in just 3 hours
TTP Simulations With FourCore ATTACK

Aarush Ahuja | Thu 18 Jun, 2026
CrowdStrike’s 2026 Global Threat Report found AI-enabled adversaries increased activity by 89%. As attackers become faster and more adaptive, FourCore ATTACK helps teams assess defenses, validate control effectiveness, and improve remediation against real exploitable gaps.

FourCore | Thu 11 Jun, 2026
CERT-In’s blueprint points toward a cybersecurity model that is continuous, threat-informed, and evidence-led. Here is what that means in practice, and how adversarial exposure validation helps organisations test whether their controls actually work against AI-assisted threats.

Swapnil | Wed 27 May, 2025
Adversary emulation is a key component of Threat-informed defense. This post details emulating Microsoft Edge browser data theft using FourCore ATTACK and validating detections with HarfangLab EDR to enhance security posture.
Everything you need to know about FourCore ATTACK, security control validation, and continuous validation in regulated environments.
FourCore ATTACK is an Adversarial Exposure Validation (AEV) platform that continuously and safely simulates real-world cyberattacks against your environment to validate whether your security controls actually work. It combines breach and attack simulation with continuous automated red teaming, maps every test to MITRE ATT&CK, and gives security teams empirical evidence of exploitable gaps plus prioritized, audit-ready remediation guidance.
A penetration test is a point-in-time, mostly manual assessment performed once or a few times a year. FourCore ATTACK runs continuously and automatically, validating your controls 24/7 as your environment and threats change. Pen testing finds vulnerabilities at a moment in time; FourCore proves, on an ongoing basis, whether your defenses stop today's attacks — and re-validates automatically after you remediate.
Yes. FourCore ATTACK is designed to run safely in production. Its simulations emulate adversary behavior using controlled, non-destructive actions — validating whether controls detect and block techniques without deploying real malware, damaging systems, or disrupting operations. Tests are scoped and reversible, so teams get production-accurate evidence of control effectiveness without the risk of an uncontrolled live attack.
Yes. FourCore ATTACK integrates with major EDR, XDR, and SIEM platforms — including CrowdStrike, SentinelOne, Palo Alto Cortex XDR, Microsoft Sentinel, IBM QRadar, and Google SecOps — so validation results map directly to the alerts (or missing alerts) in your tools. This lets you measure real detection coverage, tune rules, and prove the ROI of the security stack you already own.
Security controls should be validated continuously, not once or twice a year. Environments, configurations, and threats change constantly, so a control that worked last quarter may silently fail today. Continuous validation — running automatically and re-testing after every change or remediation — is why Gartner ties continuous exposure management to a measurably lower likelihood of breach versus periodic testing.
FourCore ATTACK helps regulated entities meet SEBI's Cyber Security and Cyber Resilience Framework (CSCRF) by continuously validating security controls and auto-generating audit-ready evidence. CSCRF expects organizations to test and demonstrate control effectiveness; FourCore supplies the empirical proof — what was tested, what was blocked, and what was remediated — mapped to the framework's requirements and structured for clean auditor handoff.
Build observability of your defense surface. Get started with FourCore ATTACK and emulate threats to assess, validate and improve your security controls.
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