Working with an expert from a forum community, it took three days to clean the system. This experience taught him that traditional antivirus software of the era was failing to catch new, evolving threats. Inspired, he began writing his own code—initially using a Visual Basic for Dummies book—to create tools that could remove these "rogue" programs. Building the Shield
The story of is a classic "accidental entrepreneur" tale that began in a Chicago basement and grew into a global cybersecurity leader. The Basement Beginning Malwarebes
He connected online with Bruce Harrison , a forum regular who shared his passion. Despite making $600,000 in their first year together, the two reportedly had not yet met in person. Working with an expert from a forum community,
Malwarebytes Anti-Malware officially launched on January 21, 2008, while Kleczynski was studying computer science at the University of Illinois . A Global Defender Building the Shield The story of is a
While working as a technician in a computer repair shop in high school, Kleczynski developed RogueRemover to eliminate fake antivirus programs.
In the early 2000s, teenager was using his family's white Dell computer to play video games he had obtained through "nefarious" means. One of these downloads turned out to be a virus that infected the machine, causing performance issues and constant pop-ups. Fearing his parents' reaction to the broken computer, Marcin turned to online message boards for help.
For years, Malwarebytes earned a reputation as the "clean-up crew" of the internet. Users would run it after their primary antivirus failed to detect an infection. The company has since expanded its mission beyond simple malware removal:
