Quantcast is an audience-measurement and demand-side ad-tech company operating the Quantcast Choice consent management platform; the US contracting entity is Quantcast Corporation (795 Folsom Street, San Francisco, CA), a private company, with Quantcast International Limited (Ireland) handling non-US users. Quantcast's Products and Services Privacy Policy describes collecting Event Data, Bid Request Data, Imported Data from Clients and third-party Data Management Platforms/Data Providers, and using this to derive Inferences (age, gender, marital status, income range) retained for up to 13 months for advertising-profile purposes; it states Quantcast shares Pseudonymous Identifiers with Data Management Platforms/Data Providers via cookie syncing to integrate services, and states it does not 'sell' personal information as CCPA defines that term, while acknowledging a CCPA right to opt out of 'selling or certain sharing' of information. In 2011, Quantcast Corporation was one of several defendants (alongside Clearspring Technologies and major media companies) in a consolidated California class action alleging use of Flash 'supercookies' to respawn deleted browser cookies; a federal court approved a settlement including injunctive relief (ending respawning, disclosing opt-outs) and over $3.2 million in monetary relief. No more recent breach or regulator order specific to Quantcast was found in this research.
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Quantcast's Products and Services Privacy Policy describes Inferences/Inferred Data as information Quantcast derives from previously collected Event Data, Bid Request Data, and Imported Data, giving as an example that Quantcast may use collected information to infer a person's interests, age, gender, marital status, or income range; such Inferences are stated to be retained for up to 13 months for advertising-profile and audience-measurement purposes.
As assessed by PrivacySpy on 2021-12-17 (see PrivacySpy's rubric entry for this product for the per-claim citation): Does the service collect personal data from third parties? — Yes.
Quantcast's legal terms identify the contracting entity for US-based users as Quantcast Corporation, located at 795 Folsom Street, San Francisco, CA 94107, and for non-US users as Quantcast International Limited, an Irish limited liability company; no parent company or public ownership filing was found in this research.
As assessed by PrivacySpy on 2021-12-17 (see PrivacySpy's rubric entry for this product for the per-claim citation): Does the policy outline the service's general security practices? — Somewhat.
Quantcast's website privacy policy states that Quantcast does not sell the personal information described in the policy, as 'sell' is defined by the California Consumer Privacy Act; the same set of legal pages separately discloses a CCPA-based consumer right to opt out of 'selling or certain sharing' of information, indicating Quantcast's ad-targeting data flows may still constitute 'sharing' under CCPA's broader definition even where no 'sale' occurs.
As assessed by PrivacySpy on 2021-12-17 (see PrivacySpy's rubric entry for this product for the per-claim citation): Does the policy allow personally-targeted or behavioral marketing? — Yes.
A Mintz law firm summary states that defendants in consolidated California class actions — including Quantcast Corporation, Clearspring Technologies, Inc., VideoEgg, Inc. and several major media companies — reached a court-approved settlement in 2011 over allegations of using Flash-based 'respawning' cookies to regenerate browser cookies users had deleted; the settlement's injunctive relief required defendants to cease using respawning cookies and disclose behavioral-advertising opt-outs, alongside monetary relief totaling over $3.2 million.
As assessed by PrivacySpy on 2021-12-17 (see PrivacySpy's rubric entry for this product for the per-claim citation): Does the policy require users to be notified in case of a data breach? — N/A.
Quantcast's privacy policy states that Quantcast shares Pseudonymous Identifiers with Data Management Platforms/Data Providers in order to sync/match identifiers to effectively integrate with their services (Cookie Syncing/Matching), a process the same policy's glossary describes as two entities determining that their separately-assigned identifiers likely relate to the same device.