Oleksandra Strelchuk, Author at UnderDefense

Platform
Security & Compliance Automation Platform

UnderDefense MAXI is the solution to day-to-day cybersecurity problems of IT leaders and teams. It builds your 24/7 business protection together with you on the driver’s seat.

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UnderDefense MAXI Platform
Capabilities
UnderDefense Secures Top Honor at the 2025 Global Infosec Awards
We’re proud of being a winner at the 2025 Global Infosec Awards…

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Our AI
10-Point AWS Security Checklist for Executives

Quickly assess your cloud security posture with this executive-ready checklist covering IAM, monitoring, and compliance essentials.

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- MAXI AI
Anti-Phishing Playbook
Your free PDF guide to spotting and stopping phishing attacks before they reach your team or data.

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Services
24/7 Threat Detection & MAXImum Responsiveness

Our human-led MDR service combines expert insight and automation and AI for fast, precise threat response. Get full context in 2 minutes and cut MTTC to 15, staying ahead of ransomware and other attacks.

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Pay only for the services you actually need, with no hidden costs.

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Solutions
10-Point AWS Security Checklist for Executives

Quickly assess your cloud security posture with this executive-ready checklist covering IAM, monitoring, and compliance essentials.

Download the Checklist
Anti-Phishing Playbook
Your free PDF guide to spotting and stopping phishing attacks before they reach your team or data.

Download the Playbook
Company
Spot threats faster and respond smarter than tools alone

24/7 MDR and SOC services led by award-winning security experts. We act as an extension to your team or as a fully remote team, providing detailed threat insights and actionable responses to secure your environment immediately.

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UnderDefense is an AWS Partner
We’re excited to announce that UnderDefense is now an AWS partner and available on AWS Marketplace…

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Resources
Managed SOC at Your Service

Augment your SOC with 24/7 monitoring, threat detection, and expert response—without the overhead. Integrated with your existing tools, our SOCaaS stops attacks before they cause harm.

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Managed SIEM Pricing Guide
Download a clear, practical overview of Managed SIEM pricing, featuring detailed breakdowns by service type, pricing model, real-world pros and cons, and key cost factors.

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Partners
Managed SOC at Your Service

Augment your SOC with 24/7 monitoring, threat detection, and expert response—without the overhead. Integrated with your existing tools, our SOCaaS stops attacks before they cause harm.

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- Become a Partner
Managed SIEM Pricing Guide
Download a clear, practical overview of Managed SIEM pricing, featuring detailed breakdowns by service type, pricing model, real-world pros and cons, and key cost factors.

Check the guide

Oleksandra Strelchuk

Penetration Tester

Oleksandra Strelchuk is a web penetration tester with over three years of experience in assessing and securing web applications and APIs. As an EWPTx-certified professional, she specializes in uncovering vulnerabilities, exploiting logic flaws, and helping organizations strengthen their web defenses through realistic offensive testing.

Prompt Injection: Real-World Example From Our Team

Oct 28, 2025

We don’t need a fortune teller to know you’re using an LLM (large language model) at work. But are...

We make cybersecurity simple, affordable,and consistent...

...by unifying currently disjointed security tools from multiple vendors. UnderDefense MAXI is on the mission to automatically detect, investigate, and respond to all possible attacks.

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