IS

IstroSec

IstroSec s.r.o.

Bratislava, Slovakia

Incident ResponseDigital ForensicsPenetration TestingOffensive SecurityIncident-response hotline
Serves Enterprise, SMB, Public Sector
Profile last updated: June 13, 2026

About

IstroSec is a cybersecurity company based in Bratislava, Slovakia working in incident response, digital forensics, penetration testing +7 more.

IstroSec is a European cybersecurity company based in Bratislava, Slovakia. It provides incident response and IR retainer programs, digital forensics and malware analysis, penetration testing, red team and purple team engagements, vulnerability assessment, threat hunting and threat landscape analysis, dark web data leak monitoring, and audit and advisory services including vCISO and security framework implementation. Its CSIRT services include 24/7 incident response, and it offers managed defense and security monitoring during incidents. The company also provides security awareness trainings, phishing simulations, tabletop exercises and cyber exercises. Its clients include SMEs, large corporations, Fortune 500 companies and governmental entities across industries. The company states it has responded to APT campaigns, has published its own CVEs and has carried out thousands of penetration tests.

Location

Bratislava, Slovakia

Legal name

IstroSec s.r.o.

Focus areas

incident responsedigital forensicsmalware analysispenetration testingred teampurple teamthreat huntingthreat intelligenceransomware responseCSIRTvulnerability assessmentvCISOsecurity awareness

Languages

ENSKPL

Services & products

Security domains

Incident ResponseDigital ForensicsPenetration TestingOffensive SecurityThreat IntelligenceDetection & ResponseManaged SecurityCloud SecurityGRC & ComplianceSecurity Awareness

How they deliver

Professional ServicesConsultingManaged ServicesTraining

Operations

Publishes an incident-response hotline on its website

Customers

EnterpriseSMBPublic Sector

Compliance & partners

Technology partners

Horizon3.aiCrowdStrikeSentinelOne

Credentials & affiliations

Awards

LockedShields 2016 winning team (three IstroSec specialists)

NATO Cooperative Cyber Defence Centre of Excellence2016

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