Because the PPC was considered a trusted third party, we linked the best expertise from each of these partners, all of whom saw the benefit of having a common solution.

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Additionally, digital advertising does not have a centralized and trusted third-party auditor to police the space, Goldman said.

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In Congressional testimony in 2004 and 2005, Google executives said they used "trusted" third-party verification services to ensure they weren't accepting ads from illicit drug sellers, and that the company had a dedicated team enforcing its policies for online pharmacy ads.

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While the definition is ever expanding, cross script scripting (XSS) attacks are generally considered a type of injection problem where malicious input is injected into an otherwise trusted web page causing an unexpected behavior such as sending data to or from an unknown third party web site (cross site).

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