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Una chat a prova di spia: dopo il miliardo e passa di utenti WhatsApp, anche i 900 milioni di persone che usano Messenger potranno contare su "Secret Conversations", il sistema di crittografia.
Facebook, proprietario di entrambe le piattaforme, ha confermato a Wired di aver terminato la distribuzione, iniziata in estate, della tecnologia per tutelare la sfera privata, che ora riguarda entrambe le comunità.
Questo tipo di codifica, chiamata “end-to-end”, cioè da un dispositivo all'altro, rende leggibili i messaggi solo sui telefoni di chi sta conversando. A differenza di altre chat, l'opzione va però attivata manualmente volta per volta. Una volta aggiornata l'applicazione, in alto a destra comparirà un lucchetto: basta un click per iniziare la chat segreta. L'icona dell'orologio, invece, permette di impostare il periodo di tempo - da 5 secondi a 24 ore - trascorso il quale il messaggio si autoeliminerà.
ANSA/mamo
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