With over 3 billion users globally, mobile instant messaging apps have become indispensable for both personal and professional communication. Besides plain messaging, many services implement additional features such as delivery and read receipts informing a user when a message has successfully reached its target. This paper highlights that delivery receipts can pose significant privacy risks to users. We use specifically crafted messages that trigger delivery receipts allowing any user to be pinged without their knowledge or consent. By using this technique at high frequency, we demonstrate how an attacker could extract private information such as the online and activity status of a victim, e.g., screen on/off. Moreover, we can infer the number of currently active user devices and their operating system, as well as launch resource exhaustion attacks, such as draining a user's battery or data allowance, all without generating any notification on the target side. Due to the widespread adoption of vulnerable messengers (WhatsApp and Signal) and the fact that any user can be targeted simply by knowing their phone number, we argue for a design change to address this issue.
✨George Michael✨
"Careless Whisper" no es solo una canción, es una herida elegante.
Ese saxo que entra despacio y te aprieta el pecho, esa voz que confiesa sin alzarla… George Michael sabía convertir la culpa, el deseo y la nostalgia en belleza pura.
Hay canciones que no se escuchan: se quedan.
︶꒦꒷♡꒷꒦︶︶꒦꒷♡꒷꒦︶︶꒦꒷♡꒷꒦︶︶꒦꒷♡꒷꒦
#georgemichael #carelesswhisper #musicaetern a #nostalgia #voz #saxo #emociones #cancionesquesequedan #humanidad
@kuketzblog Die Einstellung gibt es bei https://molly.im/ jedoch nicht bei Signal(Android), Herr Kuketz.
Um dies gänzlich zu beheben, muss es von Signal (Client + Server) gepatched werden.
Die Molly-Entwickler wollen jedoch ebenfalls Custom-Fixes bereitstellen.
https://github.com/mollyim/mollyim-android/issues/646
Signals Antwort lässt sich hier finden.
https://github.com/signalapp/Signal-Android/pull/14463#issuecomment-3613869569
P.S.: Signal ist nach wie vor sicher. Coole Kids nutzen Molly. 😁 MfG 🙏
Careless Whiskers by George Michael
(Ngl, careless whiskers could be a comment on my mustache. 😭 )
#CarelessWhisper #GeorgeMichael #CorruptedLyrics #whiskers #mustache
Pendant que #signalapp sort son nouveau système de poll.
Des chercheur , ont révélé des vulnérabilités dans les messagerie E2E ( whatsapp et signal )
Vulgarisé ici https://youtu.be/B9Syj555RQc
Pourtant, selon l'auteur. Il y aurait des solutions. Mais @signalapp aurait ignoré ces avertissements.
J'espère qu'il se trompe et que la fondation s'en vient avec des solutions. Dans tous les cas, si l'affaire ne fait pas assez de bruit. Nous ne seront pas entendu.
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