arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2202.01498cs.CR
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了解第一方Cookie跟踪在该领域

Towards Understanding First-Party Cookie Tracking in the Field

Nurullah Demir, Daniel Theis, Tobias Urban, Norbert Pohlmann

摘要:

第三方网络跟踪是一种常见的、广泛使用的网络技术。几乎用户的每一步都被跟踪、分析,并随后用于不同的用例(例如,在线广告)。出现了不同的防御机制来对抗这些做法(例如,浏览器供应商最近禁止所有第三方cookie的步骤)。然而,所有这些对策都仅针对第三方跟踪器,而忽略第一方,因为说明是此类监控主要用于改善所使用的服务(例如,分析服务)。在本文中,我们提出了一个大规模的测量研究,分析跟踪执行的第一方,但利用第三方规避标准的跟踪防止技术(即,第一方以第三方的名义执行跟踪)。我们访问排名前15,000的网站来分析用于跟踪用户的第一方cookie以及一种名为“DNS CNAME隐藏”的技术,第三方可使用该技术放置第一方cookie。使用这些数据,我们发现数据集中76%的网站有效地利用了此类跟踪技术,并且在长期分析中,我们发现此类Cookie的使用量比2021年增加了50%以上。此外,我们揭示了利用第一方跟踪器的生态系统,并发现已建立的跟踪器已经使用这种跟踪,大概是为了避免跟踪阻塞。

英文摘要:

Third-party web tracking is a common, and broadly used technique on the Web. Almost every step of users' is tracked, analyzed, and later used in different use cases (e.g., online advertisement). Different defense mechanisms have emerged to counter these practices (e.g., the recent step of browser vendors to ban all third-party cookies). However, all of these countermeasures only target third-party trackers, and ignore the first party because the narrative is that such monitoring is mostly used to improve the utilized service (e.g., analytical services). In this paper, we present a large-scale measurement study that analyzes tracking performed by the first party but utilized by a third party to circumvent standard tracking preventing techniques (i.e., the first party performs the tracking in the name of the third party). We visit the top 15,000 websites to analyze first-party cookies used to track users and a technique called "DNS CNAME cloaking", which can be used by a third party to place first-party cookies. Using this data, we show that 76% sites in our dataset effectively utilize such tracking techniques, and in a long-running analysis, we show that the usage of such cookies increased by more than 50% over 2021. Furthermore, we shed light on the ecosystem utilizing first-party trackers, and find that the established trackers already use such tracking, presumably to avoid tracking blocking.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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