大数据反欺诈技术公司「Datavisor」获C轮4000万美元融资,红杉中国领投

互联网爆炸的同时催生了各种“商机”,让不法分子有机可乘。应对不法分子的反欺诈技术则应用于许多领域,不仅包括金融领域,也包括媒体、政府监督、商业等诸多领域。事实上,只要是用户量级达到大几百万甚至千万的公司,不管处于哪个领域,欺诈问题都是隐患之一。

来自美国的大数据反欺诈技术公司「Datavisor」则专注于无标签无监督的大数据机器学习,提前捕捉未知欺诈和洗钱攻击。这家公司近日完成了C轮4000万美元融资,由红杉中国领投,现有投资方NEA(New Enterprise Associates)和GSR(金沙江创投)持续跟投。据腾讯科技报道,新一轮融资后,DataVisor将持续提升产品创新和服务能力,不断扩大其在欺诈预防和检测市场的全球影响力。

DataVisor成立于2013年,来自美国硅谷。其解决方案将前沿的人工智能与大数据技术相结合,可以在没有训练数据时检测网络攻击,并且能在攻击者发起破坏前成功捕捉。

DataVisor的系统包括三个重要组成部分:无监督机器学习引擎、自动规则引擎和全球智能信誉库。无监督极其学习引擎可同时分析数十亿账户与事件,无需标签和训练数据即可自动发掘恶意账户间的可疑关联和相似度,并即刻检测捕获整个欺诈团伙;自动规则引擎将机器学习模型的能力与规则引擎的可解释性进行结合,并及时更新与淘汰现有规则;而全球智能信誉库利用深度学习实时计算,并为客户提供行业各类智能信誉和数字指纹,如IP地址、地址位置、电子邮件网络域名、移动设备类型、操作系统等。DataVisor为客户提供的是解决方案,按用户数量计算收取年费,并不单纯售卖工具。

简单来说,DataVisor要识别出分布在人群中看似正常,但背后又有一些潜在微妙关联性的攻击行为。比如,社交平台上的许多僵尸粉并不是单一行为,通常都是几个号互相“养粉”,单看很正常,但会存在一些测试性的攻击行为。而传统的反欺诈技术是要给这些人打标签,再根据标签进行机器学习,DataVisor的做法可以减少成本,并且提高效率。

团队方面,DataVisor的CEO兼联合创始人谢映莲毕业于卡内基梅隆计算机专业,曾任职于微软研究院;CTO兼联合创始人俞舫专注大数据安全领域,技术总监兼中国区总经理吴中曾就职于微软Bing部门,主攻多媒体图片搜索。2015年10月,DataVisor曾获GSR和NEA领投的1450万美元A轮融资;2016年5月获元生资本B轮融资。

目前,DataVisor的服务对象主要有三种,社区和交易平台;银行和互联网金融机构;以及游戏、工具类应用。在美国,DataVisor的用户包括游戏公司IGG、美食点评网站Yelp、图片社交软件Pinterest;而在中国,则有陌陌、豆瓣、Blued等。

文章主要内容引自 凤凰网

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