Nemstar Insights

SolarWinds and SUNBURST; What Really Happened

By Sean Hanna, Founder & Director of Nemstar

February 4th, 2025

The first episode in our new Masterclass Series

Nemstar are pleased to present our new Masterclass Series, a collection of informational and educational videos available to everyone on our YouTube channel.

The Masterclass series will look at a variety of topics on cyber security from the eyes of Nemstar’s experts to help empower organisations worldwide to better secure their systems, information and assets.

Episode 1 – The greatest hack the world has ever seen?

Have you ever wondered what really happened with the SolarWinds SUNBURST attack or how anyone could infiltrate the highly protected and confidential information of the US government and thousands of businesses worldwide?… If you answered yes, you will definitely want to watch our first episode in our Masterclass Series. Sean Hanna dives deep into the timeline of the SUNBURST Zero Day attack and how it affected not just the US government but also the security of financial institutions, retail chains, critical national infrastructure and other organisations around the world without detection for over a year.

Watch now

Have you thought about becoming a Certified Ethical Hacker?

Ethical hackers are trained to identify and mitigate network vulnerabilities and perform security assessments to prevent data breaches within their organisations.

CEH is the most comprehensive cyber security program available that balances both breadth and depth to create knowledgeable and skilled Ethical Hackers.

Coming Soon


About the Author:

Sean Hanna

Founder & Director

Sean Hanna founded Nemstar in 2009, leveraging 20+ years of cybersecurity expertise to deliver business-focused technical training. As EC Council’s Global Security Trainer of the Year, he has trained thousands globally, including at Microsoft, GCHQ, and the U.S. Navy. Sean led Microsoft Exchange 2000’s technical training launch and helps organizations strengthen their cybersecurity defenses.

Interested in jumpstarting your cyber security career?

If you’d like to find out more about what’s involved and to see if it is the right course for you, send us a message and one of our experts will be happy to advise you