Sergio Tereshchenko
macOS specialist with a background in technical support and quality assurance.
Author Bio
Specialty

Sergio is a macOS expert at Nektony with an extensive background in technical support and QA.

With a background in technical support, quality assurance, and translation, he creates clear, actionable content on tech, digital tools, and user experience, making technical content accessible to everyone. Since transitioning into content marketing, Sergio has written a wide range of materials, from guides to case studies.

Education

Sergio has got two Master’s degrees in Law and Translation. He continuously sharpens his skills through professional development, including certifications in content marketing, software testing, etc.

Field

Sergio’s hands-on experience with testing software and assisting users with technical issues has given him a strong understanding of how products and tech work, how users interact with them, and what kind of guidance they need to solve problems quickly and effectively.

At Nektony, he creates user-focused content such as how-to guides, app overviews, and troubleshooting articles that simplify macOS tools and utilities. His mission is to turn technical processes into clear, actionable steps that empower users to make the most of their devices.

Certificates
Certificate awarded to Sergio Tereshchenko for completing the course 'The Fundamentals of Software Testing'

The Fundamentals of Software Testing

Articles
ChatGPT deals with 2.5 billion queries and nearly 190 million users daily. With more than 81% of the generative AI market, it’s become the go-to place for people to search,...
Cybercrime isn’t just noise in the headlines - it’s a storm that keeps getting louder. Last year, 76% of companies faced ransomware attacks in 2025. If big firms with million-dollar...
In our brutal reality, where 600 million cyberattacks strike every day, nearly 54 people fall victim every second, digital security can’t be an afterthought. And your Mac isn’t immune to...
Let’s face it: every 2 seconds, ransomware hits a business, a person, a device - no one’s safe. The price tag? $10.5 trillion globally. It's why you and I need...
Many Mac users have 100+ apps installed, with about 20 of them in daily usage. I'm not far behind — it's closer to 90 apps living on my Mac. Now...
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