Braun, BastianC. Pöhls, HenrichHegering, Heinz-GerdLehmann, AxelOhlbach, Hans JürgenScheideler, Christian2019-04-032019-04-032008978-3-88579-228-4https://dl.gi.de/handle/20.500.12116/21312Especially data on social network services (SNS) is linked to online personas. Our analysis has shown that no reliably solution for origin authentication is in widespread use. We will show the risk and threats resulting from this gap and analyse and contrast several approaches from the live web and research papers.enAuthenticity: The missing link in the social semantic webText/Conference Paper1617-5468