论文标题
库存是黑暗的，充满了错误信息：了解广告技术供应链中广告库存池的滥用
The Inventory is Dark and Full of Misinformation: Understanding the Abuse of Ad Inventory Pooling in the Ad-Tech Supply Chain
论文作者
论文摘要
AD-TECH使发布商可以通过复杂的供应链编程将其广告库存出售给数百万的需求合作伙伴。伪造或低质量的出版商可以利用广告技术的不透明性质，以欺骗性地将其广告清单货币化。在本文中，我们首次调查了错误信息网站如何颠覆AD-TECH透明度标准，并使用无关站点来汇总其广告库存，以规避品牌安全保护。我们发现，一些主要的广告交易所对通过错误信息网站利用的黑池负有不成比例的责任。我们进一步发现证据表明，黑暗集合允许错误的信息网站看似将其广告库存出售给信誉良好的品牌。最后，我们讨论了潜在的对策，例如更好地审查AD交流合作伙伴，采用新的AD-TECH透明度标准，这些标准能够端到端验证Ad-Tech供应链，以及像我们这样的独立审核的广泛部署。
Ad-tech enables publishers to programmatically sell their ad inventory to millions of demand partners through a complex supply chain. Bogus or low quality publishers can exploit the opaque nature of the ad-tech to deceptively monetize their ad inventory. In this paper, we investigate for the first time how misinformation sites subvert the ad-tech transparency standards and pool their ad inventory with unrelated sites to circumvent brand safety protections. We find that a few major ad exchanges are disproportionately responsible for the dark pools that are exploited by misinformation websites. We further find evidence that dark pooling allows misinformation sites to deceptively sell their ad inventory to reputable brands. We conclude with a discussion of potential countermeasures such as better vetting of ad exchange partners, adoption of new ad-tech transparency standards that enable end-to-end validation of the ad-tech supply chain, as well as widespread deployment of independent audits like ours.
