Extreme encryption.

"We're implementing it in real life", says Fellay, "making the data of the Swiss hospitals shareable to answer any research question as long as the data exists." One significant case of reidentification from 2021 involves apparently anonymised data sold to a data broker by the dating app Grindr, which is used by gay people among others. "Even insignificant nuggets of information can be used to identify people in the data" Getting such insights often means publishing or sharing the data. Computer scientist Shafi Goldwasser, a co-founder of privacy technology start-up Duality, says the firm is achieving significantly faster speeds by helping customers better structure their data and tailoring tools to their problems. [Extracted from the article]