• Home
  • Latest
  • Fortune 500
  • Finance
  • Tech
  • Leadership
  • Lifestyle
  • Rankings
  • Multimedia
Tech

WhatsApp CEO, Co-Founder Jan Koum Is Leaving Facebook

By
Bloomberg
Bloomberg
Down Arrow Button Icon
By
Bloomberg
Bloomberg
Down Arrow Button Icon
April 30, 2018, 6:51 PM ET
Mobile World Congress 2014 - Day 1
BARCELONA, SPAIN - FEBRUARY 24: Whatsapp CEo Jan Koum during a Keynote conference as part of the first day of the Mobile World Congress 2013 at the Fira Gran Via complex on February 24, 2014 in Barcelona, Spain. The annual Mobile World Congress hosts some of the world's largest communication companies, with many unveiling their latest phones and gadgets. The show runs from February 24 - February 27. (Photo by David Ramos/Getty Images)Photograph by David Ramos—Getty Images

WhatsApp founder and Chief Executive Officer Jan Koum is leaving Facebook Inc., just a few years after his messaging app was acquired by the social-media giant for $22 billion.

Koum posted his plan to depart on his Facebook page, saying the decision was emotional. His mobile-messaging tool, which has been kept separate from Facebook’s main social network, its Messenger app and other businesses, is known for offering end-to-end encryption, meaning only the sender and recipient can see the content of messages. The app has about 1.5 billion users worldwide. The news received a quick response from Facebook CEO Mark Zuckerberg.

“I’m grateful for everything you’ve done to help connect the world, and for everything you’ve taught me, including about encryption and its ability to take power from centralized systems and put it back in people’s hands,” Zuckerberg wrote. “Those values will always be at the heart of WhatsApp.”

The Washington Post reported earlier that Koum is exiting the company after clashing with Facebook over strategy, and that he also plans to leave Facebook’s board. The other co-founder of WhatsApp, Brian Acton, also left recently — and last month posted the #DeleteFacebook hashtag during the social network’s scandal over user privacy.

When asked who will replace Koum at the head of WhatsApp, or whether he plans to remain on Facebook’s board, the company said it had no comment. The company also declined to comment on whether Facebook plans to start advertising on WhatsApp — a business model the founders promised they would never use.

About the Author
By Bloomberg
See full bioRight Arrow Button Icon

Latest in Tech

Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025

Most Popular

Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Rankings
  • 100 Best Companies
  • Fortune 500
  • Global 500
  • Fortune 500 Europe
  • Most Powerful Women
  • Future 50
  • World’s Most Admired Companies
  • See All Rankings
Sections
  • Finance
  • Leadership
  • Success
  • Tech
  • Asia
  • Europe
  • Environment
  • Fortune Crypto
  • Health
  • Retail
  • Lifestyle
  • Politics
  • Newsletters
  • Magazine
  • Features
  • Commentary
  • Mpw
  • CEO Initiative
  • Conferences
  • Personal Finance
  • Education
Customer Support
  • Frequently Asked Questions
  • Customer Service Portal
  • Privacy Policy
  • Terms Of Use
  • Single Issues For Purchase
  • International Print
Commercial Services
  • Advertising
  • Fortune Brand Studio
  • Fortune Analytics
  • Fortune Conferences
  • Business Development
About Us
  • About Us
  • Editorial Calendar
  • Press Center
  • Work At Fortune
  • Diversity And Inclusion
  • Terms And Conditions
  • Site Map
  • Facebook icon
  • Twitter icon
  • LinkedIn icon
  • Instagram icon
  • Pinterest icon

© 2026 Fortune Media IP Limited. All Rights Reserved. Use of this site constitutes acceptance of our Terms of Use and Privacy Policy | CA Notice at Collection and Privacy Notice | Do Not Sell/Share My Personal Information
FORTUNE is a trademark of Fortune Media IP Limited, registered in the U.S. and other countries. FORTUNE may receive compensation for some links to products and services on this website. Offers may be subject to change without notice.


Most Popular

placeholder alt text
Economy
'I just don't have a good feeling about this': Top economist Claudia Sahm says the economy quietly shifted and everyone's now looking at the wrong alarm
By Eleanor PringleJanuary 31, 2026
1 day ago
placeholder alt text
Success
Ryan Serhant starts work at 4:30 a.m.—he says most people don’t achieve their dreams because ‘what they really want is just to be lazy’
By Preston ForeJanuary 31, 2026
22 hours ago
placeholder alt text
Future of Work
Ford CEO has 5,000 open mechanic jobs with up to 6-figure salaries from the shortage of manually skilled workers: 'We are in trouble in our country'
By Marco Quiroz-GutierrezJanuary 31, 2026
20 hours ago
placeholder alt text
Success
Alexis Ohanian walked out of the LSAT 20 minutes in, went to a Waffle House, and decided he was 'gonna invent a career.' He founded Reddit
By Preston ForeJanuary 31, 2026
20 hours ago
placeholder alt text
Economy
Right before Trump named Warsh to lead the Fed, Powell seemed to respond to some of his biggest complaints about the central bank
By Jason MaJanuary 30, 2026
2 days ago
placeholder alt text
AI
Top engineers at Anthropic, OpenAI say AI now writes 100% of their code—with big implications for the future of software development jobs
By Beatrice NolanJanuary 29, 2026
3 days ago

Latest in Tech

Big TechMark Zuckerberg
The Chan Zuckerberg Initiative cut 70 jobs as the Meta CEO’s philanthropy goes all in on mission to ‘cure or prevent all disease’
By Sydney LakeFebruary 1, 2026
35 minutes ago
The founder and CEO of $1.25 billion AI identity verification platform Incode, Ricardo Amper
SuccessGen Z
CEO of $1.25 billion AI company says he hires Gen Z because they’re ‘less biased’ than older generations—too much knowledge is actually bad, he warns
By Emma BurleighFebruary 1, 2026
2 hours ago
Several pictures of people receiving medical treatments including a facelift and oxygen therapy.
HealthSuper Bowl
Hims and Hers Super Bowl ad highlights ‘uncomfortable truth’ about elite healthcare for the rich and ‘broken’ system for the rest
By Jacqueline MunisFebruary 1, 2026
2 hours ago
Elon Musk sits with his hands on his knees in front of a blue "World Economic Forum" background.
Economythe future of work
Musk’s fantasy for a future where work is optional just got more real: UK minister calls for universal basic income to cushion AI-related job losses
By Sasha RogelbergFebruary 1, 2026
3 hours ago
Startups & VentureOpenAI
Nvidia CEO signals investment in OpenAI round may be largest yet
By Debby Wu and BloombergJanuary 31, 2026
12 hours ago
Startups & VentureVenture Capital
Silicon Valley legend Kleiner Perkins was written off. Then an unlikely VC showed up
By Allie GarfinkleJanuary 31, 2026
16 hours ago