The Elyze application, nicknamed the "Tinder" of the presidential election because it offers Internet users to find the candidate who suits them best, no longer collects data from its users, indicated its creators, implicated for the security of their app.
In a press release posted on Twitter, the application team also specifies that all data already collected will be deleted.
"For your data to be automatically deleted, simply relaunch the application, once the latest update has been accepted by the App Store and the Play Store", specifies the press release, addressing the hundreds of thousands of users who have chosen to fill in their data.
Before doing this big wipe, Elyze kept users' choices on different policy proposals, as well as the user's gender, zip code, and date of birth. A collection which was however optional: any Internet user could use all the functions of Elyze without sharing any information.
Over a million users
Developed by two students, Elyze had been a dazzling success since it went online in early January, managing to climb to the top of downloads in France with more than a million users.
The stated intention was "to combat a galloping abstention which is increasing election after election", by stimulating interest in the electoral campaign.
But Elyze was questioned for its security, after a coder specializing in vulnerability research, Mattis Hammel, managed to modify the application to insert a false candidate proposal.
Other coders or Internet users have questioned the legality of the data collection carried out by Elyze, in a particularly sensitive area since the application analyzes political choices.
The Cnil, the guardian of the privacy of the French in the face of computers and files, had indicated on Monday that it was looking into this application, after being alerted by Internet users. Faced with criticism, the creators of Elyze therefore proceeded quickly to correct the bug spotted by Mattis Hammel.
They also made the application's code public on the GitHub platform on Wednesday, allowing any third party who wishes to do so to check how the application works - and in particular how it assigns each person their best candidate, according to their expectations in such a situation. or such domain.
Elyze had justified its decision to keep user data by the desire to allow "scientific research".
Grégoire Cazcarra, co-founder with François Mari, clarified that they were not "intended to be provided to a party or a campaign team".