Our Mission

DataVisor’s mission is to build and restore trust online. It partners with the largest financial and internet properties in the world to protect them from a wide array of attacks, including fraud, abuse, and money laundering. An industry leader in unsupervised machine learning, DataVisor’s detection solution captures attackers without the need to train data, and often before they can do damage.

DataVisor is made up of a team of world-class experts in big data infrastructure and machine learning. It builds the world’s most advanced algorithms to fight the world’s most sophisticated online attackers.

Key Statistics




Accounts Protected


Malicious Accounts Detected


Events Analyzed


Yinglian Xie

CEO & Co-Founder

Yinglian has over 10 years of experience in security, specializing in fighting large-scale attacks with AI and Big Data technologies. Previously, Yinglian worked at Microsoft protecting hundreds of millions of users across a wide range of Microsoft products.

Fang Yu

CTO & Co-Founder

Fang spent 8 years at Microsoft Research developing big-data algorithms and systems for identifying various malicious traffic such as worms, spam, bot queries, hijacked accounts, and fraudulent financial transactions across a wide range of Microsoft products. 

David Cassady

VP of Business Development, Partnerships, and Sales

David brings over two decades worth of executive-level experience to his role with DataVisor. He has held similar positions at companies such as Greenlight Technologies and Alert Enterprise, and has led several high-growth startups through successful IPOs and acquisitions, including Virsa Systems (acquired by SAP) and Interwoven (acquired by Autonomy, in turn acquired by Hewlett-Packard).

Priya Rajan

VP of Marketing

Priya brings over 18 years of experience from high growth technology organizations including industry leaders (VISA, Cisco) and Silicon valley unicorns (Nutanix, Adaptive Insights). In her most recent roles in the anti-fraud industry, Priya led the product marketing, content and field marketing efforts and helped to power growth in US and EMEA markets.

Kohki Yamaguchi

Director of Product

Kohki has over 10 years of experience leading product and marketing for B2B technology companies including Adobe, Origami Logic, and Efficient Frontier. His current and past work has focused on building products that apply big data analytics and machine learning to provide groundbreaking solutions for enterprise companies.

Wade Ang

Head of Finance

Wade leads Finance, Accounting, HR, and Administration at DataVisor. He has over 15 years of experience leading finance teams with high growth organizations such as Esurance (acquired by Allstate Insurance), Siperian (acquired by Informatica), Ncomputing, Quixey and Monolith.

Deveaux Barron

Director of Industry Solutions, Financial Services

Deveaux Barron has over 20 years of expertise in Financial Markets, Advanced Analytics, and AI. She has worked at leading financial technology companies such as Ayasdi, Misys and Deloitte, where she was involved in business development, sales, product strategy, client services.

Kathleen Avery

Head of Talent

Kathleen has over 15 years of experience leading searches for some of Silicon Valley’s fastest growing startups. She previously led Angel Technology Partners, an executive search and angel investment firm. She also founded The Avery Group, a technical consulting firm, and sold to a NASDAQ-listed company for 100x return.

Zhong Wu

General Manager, China

Prior to DataVisor, Zhong worked at Microsoft Bing on web-scale image search. His past work included scalable infrastructure, high performance systems, and efficient algorithms to improve search relevance from billions of images.

Hailiang Lu

Head of Sales, China

Hailiang has more than 13 years experience in enterprise sales in the big data analytics space. Before he joined Datavisor, he was a Director of Sales for Analytics at SAP, a Business Analytics Solution Executive at IBM, and a Director of Sales, FSI at SAS.

Jun Zheng

Head of Customer Success, China

Jun has over 15 years of working experience in the IT industry. He started his career with IBM and later joined the Ontario Public Service. Prior to DataVisor, he led expansions into East and South China for two startup companies.



As one of the world’s largest and most active venture capital firms, NEA has deep domain expertise in technology and healthcare.

Jon Sakoda

General Partner, NEA

Jon is a general partner at NEA and focuses on Software-as-a-Service (SaaS), Infrastructure Software, and Big Data Applications. Jon also co-manages NEA’s seed investment program.


With over $1B under management, GSR specializes in early and growth stage tech companies focused on global markets.

Kevin Fong

Advisor, GSR Ventures

Kevin is a special advisor to GSR Ventures, which he co-founded in 2004 to focus on investments in China. Prior to GSR, Kevin was at Mayfield Fund as a Managing Partner for 20 years.


Genesis Capital is a focused, specialized, disciplined investor focusing on growth stage Internet companies in China and USA.

Richard Peng

Founding Partner, Genesis Capital

Richard is a founding partner at Genesis Capital, a highly specialized and disciplined venture capital firm investing in expansion stage Internet companies in China and U.S.A. 


From idea to IPO and beyond, the Sequoia team helps a small number of daring founders build legendary companies.

Rock Wang

Managing Director, Sequoia China

Rock Wang, Vice President of Sequoia Capital China. He focuses on investments in financial services sectors and internet finance related innovations.

DataVisor Offices

Mountain View (HQ)

967 N Shoreline Blvd
Mountain View CA 94043


Room2107/08 Tower2-C
Wangjing SOHOChaoyang Dist, Beijing


1401, 14 / F, Zhongrong Int’l Building
1088 Pudong South Road
Pudong New Dist, Shanghai


60 Anson Rd
WeWork Mapletree Anson #17-01
Singapore 079914


Ready to enhance your detection with unsupervised machine learning?