Jan Koum

Jan Koum

entrepreneur Ukraine

Jan Koum is a Ukrainian-American computer programmer and entrepreneur best known as the co-founder of WhatsApp, a popular messaging application used by over 2 billion people worldwide. Born on February 24, 1976, in Kyiv, Ukraine, Koum immigrated to the United States in 1992. He worked at Yahoo for nearly a decade before co-founding WhatsApp in 2009 with Brian Acton. The app quickly gained popularity for its simplicity and user-friendly interface, leading to its acquisition by Facebook in 2014 for approximately $19 billion. Koum has been an advocate for user privacy and has emphasized the importance of encryption in digital communications.

Born on Feb 24, 1976 (49 years old)

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United States United States: Zuckerberg thought it was 'extremely unlikely' that WhatsApp would build competitive features after his first meeting with the platform’s co-founder Jan Koum. 5

CNN: Spinning off Instagram, the decline of ‘friending’ and other takeaways from Mark Zuckerberg at the FTC monopoly trial