Billionaire Profile
Zhou Hongyi
Global Rank
#1667

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

Zhou Hongyi

CEO, Security software
CHINA
Real-Time Net Worth
$2.468B
Estimated based on Security software stock value as of March 6, 2026
+0.91% (24h)
Age
55
Source
Security software
Industry
Technology
Citizenship
CHINA

Biography

Zhou Hongyi is a prominent Chinese entrepreneur and the co-founder, CEO, and chairman of Qihoo 360, a leading internet security company. With an estimated net worth of $2.6 billion as of February 2, 2026, Zhou's source of wealth stems from his success in the security software industry. His career includes founding 3721.com, an online search company acquired by Yahoo, and later establishing Qihoo 360. Zhou is known for his outspoken personality and has been ranked among the world's wealthiest individuals.

Fact Checked
Verified by Editorial Team
Live Data
Updated 3/6/2026

Wealth Over Time

In-Depth Profile

Early Life

Zhou Hongyi was born on October 4, 1970, in Huanggang, Hubei, China. Not much is known about his early years and childhood. He holds a Master of Science degree from Xi'an Jiaotong University.

Rise to Success

Zhou's career began with the founding of 3721 in 1998, a search engine that sold Chinese-language keywords, which was later acquired by Yahoo! in 2004 for $120 million. Zhou then headed Yahoo! China's operations. In 2005, due to differences in management, Yahoo sold its China operations to Alibaba, and Zhou left to start Qihoo 360. Zhou is the co-founder, chairman, and CEO of Qihoo 360 Technology, one of China's leading internet security companies.

Key Business Strategies

Zhou is known for his aggressive business tactics and his popularization of the freemium model for security software in China. This strategy involved offering core services for free and monetizing through value-added services, search, and online advertising, which revolutionized the industry. Zhou has also been spearheading Qihoo 360's expansion into AI and IoT security, aiming to build a comprehensive security ecosystem.

Philanthropy

Zhou is known for his philanthropic efforts, particularly in the area of education.

Career Milestones

1998

Founded 3721

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

2004

3721 Acquired by Yahoo!

3721 was acquired by Yahoo! for $120 million, with Zhou heading Yahoo! China's operations.

2005

Founded Qihoo 360

Founded Qihoo 360, an internet security company.

2006

CEO of Qihoo 360

Became CEO of Qihoo 360

Philanthropy & Social Impact

Education

Education

Undisclosed

Zhou Hongyi is known for his philanthropic efforts, particularly in the area of education.