Billionaire Profile
Zhou Hongyi
Global Rank
#1735

Image: 中国新闻社 | CC BY 3.0 | via Wikimedia Commons

Zhou Hongyi

CEO, Security software
CHINA
Real-Time Net Worth
$2.441B
Estimated based on Security software stock value as of April 20, 2026
+0.99% (24h)
Age
55
Source
Security software
Industry
Technology
Citizenship
CHINA

Biography

Zhou Hongyi is a prominent Chinese entrepreneur and the co-founder, chairman, and CEO of Qihoo 360, a leading internet security company. Born on October 4, 1970, he is a self-made billionaire, with a net worth of $2.6 billion as of 2024. His wealth stems from his successful career in the technology industry, specifically in security software. Zhou's career includes founding 3721.com, which was later acquired by Yahoo, where he served as president of Yahoo China. He is recognized for pioneering the freemium model in cybersecurity and his significant contributions to China's internet landscape.

Fact Checked
Verified by Editorial Team
Live Data
Updated 4/20/2026

Wealth Over Time

In-Depth Profile

Early Life

Zhou Hongyi was born on October 4, 1970, in Huanggang, Hubei, China. He obtained a master's degree from Xi'an Jiaotong University. Not much is known about his early life and childhood.

Rise to Success

Zhou's career began with the founding of 3721 in 1998, a search engine that sold Chinese-language keywords for Roman-alphabet domain names. 3721 was later acquired by Yahoo! in 2004 for $120 million, with Zhou heading Yahoo! China's operations. However, due to strategic differences, he left Yahoo to start Qihoo 360 in 2005. Qihoo 360 quickly grew to become one of China's leading internet security companies, offering free antivirus software. Zhou pioneered the freemium model, providing core services for free while generating revenue through value-added services and advertising. Qihoo 360 went public on the New York Stock Exchange in 2011, and later relisted on the Shanghai Stock Exchange in 2018.

Key Business Strategies

Zhou's key business strategies involved focusing on internet security solutions and the freemium model. This approach allowed Qihoo 360 to gain a large user base and challenge established players in the market. He also expanded Qihoo 360 into areas such as AI and IoT security.

Philanthropy

Information on Zhou Hongyi's specific philanthropic initiatives and amounts could not be found through the search. However, as of April 2023, Zhou's ex-wife, Hu Huan, received a $1.3 billion share of the company in a divorce settlement, which indicates his level of wealth.

Career Milestones

1998

Founded 3721.com

Founded 3721.com, a search engine which sold Chinese-language keywords.

2004

CEO of Yahoo! China

Headed Yahoo! China's operation after 3721.com was acquired.

2005

Co-founded Qihoo 360

Co-founded Qihoo 360, a leading internet security company.

2011

Qihoo 360 IPO

Led Qihoo 360's IPO on the New York Stock Exchange.

2018

Relisted Qihoo 360

Relisted Qihoo 360 on the Shanghai Stock Exchange.

Philanthropy & Social Impact

Philanthropy

Unknown

Undisclosed

Specific philanthropic contributions are not readily available.

Business Philosophy & Leadership

Notable Quotes

"My job in China is to kick Google's ass."

Leadership Principles

Focus on product

Zhou is known for his hands-on approach and commitment to innovation and user-centric products.

Aggressive business tactics

Known for his outspoken nature and aggressive business tactics, often challenging established players and driving innovation.

Controversies & Challenges

2011

3Q War with Tencent

Qihoo 360 advised its users that Tencent's QQ instant messaging service was a security threat, leading to a public dispute and government intervention.