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Oleksandr Filipov

Cybersecurity author

Oleksandr Filipov, an author of cybersecurity articles, is a certified cybersecurity engineer with practical experience in the field of information security since 2017.

He graduated from Columbia University (New York, USA) and has obtained many international certifications, including from PentesterLab, Udemy, Ehacking, and IYT Worldwide, covering a wide range of areas, from web pentesting and mobile security to OSINT intelligence.

Oleksandr specializes in conducting penetration testing using the OWASP, OSSTMM, and PTES methodologies, smart contract audits, reverse engineering, vulnerability assessment, and protecting digital resources from DDoS attacks and other external threats.

He works with web services and mobile applications as well as corporate networks.

Among his successful cases are cybersecurity assessments for businesses across various industries, including the banking sector, pharmaceutical and medical organizations, SaaS companies, and others.

In his articles, Oleksandr Filipov shares his own practical knowledge - these materials are useful not only for specialists but also for businesses and cybersecurity enthusiasts. The cybersecurity author writes based on real Datami projects about current threats and vulnerabilities of cyber defense systems, effective security testing methods, and efficient solutions for strengthening the protection of digital resources.

Learn more from our author's cybersecurity practice
What is a Cybersecurity Incident? Oleksandr Filipov
Oleksandr Filipov
What is a Cybersecurity Incident?

Cyber incidents have long ceased to be a headache only for large corporations and government institutions. Today, they are a common part of the digital reality faced by companies of all sizes.

May 4, 2026 3 min
Top Business Cyber Security Issues Oleksandr Filipov
Oleksandr Filipov
Top Business Cyber Security Issues

Which issues in cyber security do businesses face most frequently? In this article, we examine the top 9 most relevant cybersecurity issues by criticality level and provide recommendations for their remediation.

May 4, 2026 3 min
Top 4 Most Vulnerable Industries According to Datami Oleksandr Filipov
Oleksandr Filipov
Top 4 Most Vulnerable Industries According to Datami

Does the level of cyber risks depend on the industry? Datami analyzed the relationship between the number of vulnerabilities and the business sector of companies and identified the top industries with the highest concentration of weak points.

Mar 27, 2026 10 min
Top 3 Industries with the Highest Number of Critical Cybersecurity Vulnerabilities from Datami Practice Oleksandr Filipov
Oleksandr Filipov
Top 3 Industries with the Highest Number of Critical Cybersecurity Vulnerabilities from Datami Practice

Which industries face the highest concentration of critical cybersecurity risks? Based on an analysis of the Datami project results, we identified three sectors where the average number of critical vulnerabilities discovered per project is the highest.

Mar 31, 2026 15 min
Types of Cybersecurity Vulnerabilities: The Most Common and Critical from Datami’s Practice Oleksandr Filipov
Oleksandr Filipov
Types of Cybersecurity Vulnerabilities: The Most Common and Critical from Datami’s Practice

In this article, we outline the main types of vulnerabilities. Based on the results of our projects, we have also compiled top lists of the most common and the most critical ones.

Mar 7, 2026 15 min
Cybersecurity for Business Oleksandr Filipov
Oleksandr Filipov
Cybersecurity for Business

Today, any business, whether a three-person startup or a corporation with thousands of employees, is a target for hackers. That’s why cybersecurity is a key element of business stability and growth.

Oct 28, 2025 15 min
What Is a Cyberattack? Oleksandr Filipov
Oleksandr Filipov
What Is a Cyberattack?

Do you know what a cyberattack is and how to recognize it? In this article, we will talk about the motives and consequences of attacks, how to act during an incident, and how to protect yourself from cyberattacks.

Nov 5, 2025 15 min
Cyberattack Types Oleksandr Filipov
Oleksandr Filipov
Cyberattack Types

To effectively protect data and systems, it is important to understand what types of cyberattacks exist and how they work. In this article, we will look at the main types of attacks and figure out how to protect your business from them.

Nov 6, 2025 15 min
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