Marcin Malwarebytes


Hi, Marcin Kleczynski here, founder and CEO of Malwarebytes. Thanks for using the free version of Malwarebytes. We work hard to make the best cybersecurity products on the market, and we’re proud that you’ve trusted us to keep you and your devices safe from hackers.

I created Malwarebytes in 2004 after I accidentally infected my family computer with malware. I needed a program that could get rid of the infection, so with the help of some friends, I built one myself. It turned out I wasn’t the only one infected with malware, so I started giving away my program for free.

Marcin Kleczynski created his first product by fixing the family computer. He founded Malwarebytes, now an international company, with 750 employees. Malwarebytes Anti-Malware Remediation Tool. Malwarebytes Anti-Malware for Business. Malwarebytes Anti-Exploit for Business. Like developer of Malwarebytes antimalware Marcin show us his dedication and efforts to fight against malware offering a great software. We know he's a great guy and can.

Marcin Kleczynski is CEO/Co-Founder at Malwarebytes Corp. See Marcin Kleczynski's compensation, career history, education, & memberships.

More than ten years later, the basic version of Malwarebytes is still free. With this in mind, you may be wondering why you should bother upgrading to Premium. It’s pretty simple. While the free version gets rid of infections, the premium version stops them before they happen.

We hope you’ll consider upgrading to Malwarebytes Premium. It doesn’t just protect your devices. It protects your family photos, your privacy, and your money. We try hard to keep subscriptions affordable, and every purchase comes with a 60-day money back guarantee. Your subscription also helps us improve the product and give back to the community by sponsoring programs for young people who want to learn about computer science. It’s all part of our commitment to give everyone a chance at a malware-free existence.

Thank you,

-Marcin Kleczynski, Founder and CEO of Malwarebytes

Malwarebytes Marcin Kleczynski Net Worth


SANTA CLARA, Calif. – March 3, 2017 – Malwarebytes™, the leading advanced malware prevention and remediation solution, announced today that Marcin Kleczynski, CEO of Malwarebytes, was awarded the title of “CEO of the Year” at the Info Security Products Guide’s 13th annual Global Excellence Awards. Kleczynski took home the gold in the 100 – 499 employees category for his company leadership and dedication to fostering the next generation of computer scientists.

Marcin Kleczynski Malwarebytes

“It’s an honor to receive an award acknowledging our efforts to create a malware free existence for consumers and businesses alike, while helping to source and grow the IT security leaders of tomorrow,” said Kleczynski. “This early mission evolved into the formation of Malwarebytes, one of the fastest-growing cyber security companies that protects people and businesses from dangerous threats that escape traditional antivirus detection. Our growth is a direct result of the talented security professionals that help us protect tens of thousands of businesses and millions of end-users today.”

Marcin MalwarebytesMalwarebytes marcin kleczynski

The security field is experiencing a skills shortage of epic proportions that has left many employers looking to non-security professionals to lead security projects, resulting in efforts that are not up to the standards required for protecting against today’s threats. Kleczynski uses his experience as a successful tech entrepreneur to inspire the next generation of IT security professionals through ongoing school visits and prominent conference discussions. He believes that encouraging students to pursue cybersecurity as a career choice will help address this critical shortage of cybersecurity professionals.

Through Kleczynski’s guidance, Malwarebytes secured a $50 million Series B funding round from Fidelity Management and Research Company and has grown significantly in size and scope. In 2016, the company’s corporate subscription base grew to become the majority of its user base and Malwarebytes experienced record renewals for both consumer and corporate customers. Additionally, the company added 200 individuals to its employee base with continued global expansion. Malwarebytes now employs nearly 500 employees worldwide, with office locations in Santa Clara, California; Cork, Ireland; Clearwater, Florida, Tallinn, Estonia; London, England and Singapore. In 2016, Marcin also guided the hiring of the company’s first Chief Information Security Officer, the appointment of a Head of Asia Pacific Operations and launched Middle East operations.

The security industry celebrated its 13th Annual 2017 Global Excellence Awards in San Francisco by honoring excellence in every facet of the security industry including products, people and companies. More than 40 judges from a broad spectrum of global industry voices participated and their average scores determined the 2017 Global Excellence Awards Finalists and Winners. The winners were announced during the awards dinner and presentation on February 13, 2017 in San Francisco attended by the finalists, judges and industry peers.

Marcin Kleczynski Malwarebytes


About Info Security Products Guide

Info Security Products Guide plays a vital role in keeping end-users informed of the choices they can make when it comes to protecting their digital resources. It is written expressly for those who are adamant on staying informed of security threats and the preventive measure they can take. You will discover a wealth of information in this guide including tomorrow’s technology today, best deployment scenarios, people and technologies shaping info security and market research reports that facilitate in making the most pertinent security decisions. The Info Security Products Guide Global Excellence Awards recognize and honor excellence in all areas of information security. To learn more, visit and stay secured.

About Malwarebytes

Marcin Kleczynski Ceo Malwarebytes

Malwarebytes is the next-gen cybersecurity company that millions worldwide trust. Malwarebytes proactively protects people and businesses against dangerous threats such as malware, ransomware, and exploits that escape detection by traditional antivirus solutions. The company’s flagship product combines advanced heuristic threat detection with signature-less technologies to detect and stop a cyberattack before damage occurs. Tens of thousands of businesses worldwide use, trust, and recommend Malwarebytes. Founded in 2008, the company is headquartered in California, with offices in Europe and Asia, and a global team of threat researchers and security experts. For more information, please visit us at

Marcin Malwarebytes

Malwarebytes founder and CEO Marcin Kleczynski started the company to create the best disinfection and protection solutions to combat the world’s most harmful Internet threats. Marcin was recently named “CEO of the Year” in the Global Excellence awards and has been named to the Forbes 30 Under 30 Rising Stars of Enterprise Technology list and the Silicon Valley Business Journal’s 40 Under 40 award, adding those to an Ernst & Young Entrepreneur of the Year Award.