olemus
mõnede teenuste andmisel võetav eritasu kasutaja andmete privaatsuse säilitamise eest

täpsemalt
https://blog.malwarebytes.com/security-world/privacy-security-world/2019/02/will-pay-privacy-new-normal/

https://www.researchgate.net/publication/329782530_Why_Are_Consumers_Willing_to_Pay_for_Privacy_An_Application_of_the_Privacy-freemium_Model_to_Media_Companies

https://www.ieee-security.org/TC/SPW2019/ConPro/papers/han-conpro19.pdf