CRII: SaTC: Techniques for Measuring and Characterizing Robocalls

自动呼叫（通常称为“robocalls”），其目的可能从电话营销到彻头彻尾的欺诈，已经达到流行的程度。虽然有些机器人电话在社会上很有用，但也有很多用于恶意目的。这一点尤其令人担忧，因为一些诈骗电话每年都会窃取数百万美元，通常来自老年人和新移民等弱势群体。 像国家不打电话登记处这样的政策机制未能有效地阻止这些电话。尽管有明确的需求，网络安全社区目前缺乏所需的基础设施和技术来提供洞察这个问题的范围，这阻碍了有效的解决方案的开发和科学验证。该项目旨在开发技术来表征和测量robocalls，这将导致更好的防御诈骗电话为最终用户。该项目将开发一种新的基础设施来收集robocalls。 该基础设施将促进新技术的开发，以衡量受害者行为对robocallers的影响，以及对robocalling趋势的全面和系统的测量，包括地理，网络和时间特征;常见的滥用趋势;欺骗率的测量;以及robocall活动的特征。 该奖项反映了NSF的法定使命，并通过使用基金会的知识价值和更广泛的影响审查标准进行评估，被认为值得支持。

Automated calls (often called "robocalls"), which may range in purpose from telemarketing to outright fraud, have reached epidemic proportions. While some robocalls are societally useful, there are plenty that are used for malicious purposes. This is particularly concerning because some scam calls steal millions of dollars annually, often from vulnerable populations including the elderly and recent immigrants. Policy mechanisms like the National Do Not Call Registry have failed to meaningfully stop these calls. Despite a clear need, the network security community currently lacks the infrastructure and techniques needed to provide insight into the scope of this problem, which prevents the development and scientific validation of effective solutions.This project is aimed at developing techniques to characterize and measure robocalls, which will lead to better defenses against scam calls for end users. The project will develop a new infrastructure to collect robocalls. This infrastructure will facilitate the development of new techniques to measure the impact of victim behaviors on robocallers, as well as comprehensive and systematic measurements of robocalling trends including geographic, network and temporal characteristics; common abuse trends; measurements of spoofing rates; and characterization of robocall campaigns. Such insights will lead to better detection and prevention of these calls.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.