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#ClientSideScanning

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Miguel Afonso Caetano<p>"Billions of people worldwide use private messaging platforms like Signal, WhatsApp, and iMessage to communicate securely. This is possible thanks to end-to-end encryption (E2EE), which ensures that only the sender and the intended recipient(s) can view the contents of a message, with no access possible for any third party, not even the service provider itself. Despite the widespread adoption of E2EE apps, including by government officials, and the role of encryption in safeguarding human rights, encryption, which can be lifesaving, is under attack around the world. These attacks most often come in the form of client-side scanning (CSS), which is already being pushed in the EU, UK, U.S., and Australia.</p><p>CSS involves scanning the photos, videos, and messages on an individual’s device against a database of known objectionable material, before the content is then sent onwards via an encrypted messaging platform. Before an individual uploads a file to an encrypted messaging window, it would be converted into a digital fingerprint, or “hash,” and compared against a database of digital fingerprints of prohibited material. Such a database could be housed on a person’s device, or at the server level.</p><p>Proponents of CSS argue that it is a privacy-respecting method of checking content in the interests of online safety, but as we explain in this FAQ piece, CSS undermines the privacy and security enabled by E2EE platforms. It is at odds with the principles of necessity and proportionality, and its implementation would erode the trustworthiness of E2EE channels; the most crucial tool we have for communicating securely and privately in a digital ecosystem dominated by trigger-happy surveillance."</p><p><a href="https://www.accessnow.org/why-client-side-scanning-is-lose-lose-proposition/" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://www.</span><span class="ellipsis">accessnow.org/why-client-side-</span><span class="invisible">scanning-is-lose-lose-proposition/</span></a></p><p><a href="https://tldr.nettime.org/tags/CyberSecurity" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>CyberSecurity</span></a> <a href="https://tldr.nettime.org/tags/Encryption" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Encryption</span></a> <a href="https://tldr.nettime.org/tags/ClientSideScanning" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>ClientSideScanning</span></a> <a href="https://tldr.nettime.org/tags/E2EE" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>E2EE</span></a> <a href="https://tldr.nettime.org/tags/Privacy" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Privacy</span></a> <a href="https://tldr.nettime.org/tags/DataProtection" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>DataProtection</span></a> <a href="https://tldr.nettime.org/tags/Surveillance" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Surveillance</span></a></p>
Alec Muffett<p>IN CASE YOU MISSED IT: aren’t you glad that we don’t (yet) live in a world where on-device client side surveillance triggers report you to the police for using words like “bomb” or “uranium” in Signal &amp; WhatsApp chats?<br><a href="https://alecmuffett.com/article/113606" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://</span><span class="">alecmuffett.com/article/113606</span><span class="invisible"></span></a><br><a href="https://mastodon.social/tags/ClientSideScanning" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>ClientSideScanning</span></a> <a href="https://mastodon.social/tags/EndToEndEncryption" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>EndToEndEncryption</span></a> <a href="https://mastodon.social/tags/HomeOffice" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>HomeOffice</span></a> <a href="https://mastodon.social/tags/apple" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>apple</span></a> <a href="https://mastodon.social/tags/censorship" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>censorship</span></a> <a href="https://mastodon.social/tags/meta" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>meta</span></a> <a href="https://mastodon.social/tags/signal" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>signal</span></a> <a href="https://mastodon.social/tags/surveillance" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>surveillance</span></a> <a href="https://mastodon.social/tags/whatsapp" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>whatsapp</span></a></p>
Peter :antifa:🧷<p>Denmark wants to succeed where</p><p>- Sweden 🇸🇪<br>- Spain 🇪🇸<br>- Belgium 🇧🇪<br>- Hungary 🇭🇺<br>- and Poland 🇵🇱</p><p>have failed.</p><p><a href="https://netzpolitik.org/2025/eu-ratspraesidentschaft-daenemark-setzt-chatkontrolle-wieder-auf-die-agenda/" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">netzpolitik.org/2025/eu-ratspr</span><span class="invisible">aesidentschaft-daenemark-setzt-chatkontrolle-wieder-auf-die-agenda/</span></a></p><p><a href="https://chaos.social/tags/ChatControl" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>ChatControl</span></a> <a href="https://chaos.social/tags/ClientSideScanning" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>ClientSideScanning</span></a> <a href="https://chaos.social/tags/Surveillance" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Surveillance</span></a></p>
Alec Muffett<p>Let’s all take a moment to consider that if — as demanded by Ofcom — encrypted messenger systems WERE actually monitoring conversations for words like: drone, bomb, explosive… all reports would currently be swamped<br><a href="https://alecmuffett.com/article/113431" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://</span><span class="">alecmuffett.com/article/113431</span><span class="invisible"></span></a><br><a href="https://mastodon.social/tags/ClientSideScanning" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>ClientSideScanning</span></a> <a href="https://mastodon.social/tags/EndToEndEncryption" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>EndToEndEncryption</span></a> <a href="https://mastodon.social/tags/OnlineSafety" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>OnlineSafety</span></a> <a href="https://mastodon.social/tags/drones" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>drones</span></a> <a href="https://mastodon.social/tags/ofcom" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>ofcom</span></a> <a href="https://mastodon.social/tags/signal" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>signal</span></a> <a href="https://mastodon.social/tags/ukraine" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>ukraine</span></a> <a href="https://mastodon.social/tags/whatsapp" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>whatsapp</span></a></p>
Alec Muffett<p>I don’t have official confirmation, but I’m unilaterally declaring dibs on inspiration for this WhatsApp advertising campaign…<br><a href="https://alecmuffett.com/article/113418" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://</span><span class="">alecmuffett.com/article/113418</span><span class="invisible"></span></a><br><a href="https://mastodon.social/tags/ChildSafety" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>ChildSafety</span></a> <a href="https://mastodon.social/tags/ClientSideScanning" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>ClientSideScanning</span></a> <a href="https://mastodon.social/tags/EndToEndEncryption" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>EndToEndEncryption</span></a> <a href="https://mastodon.social/tags/OnlineSafety" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>OnlineSafety</span></a> <a href="https://mastodon.social/tags/privacy" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>privacy</span></a> <a href="https://mastodon.social/tags/whatsapp" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>whatsapp</span></a></p>
Linux G. Fossman<p><span class="h-card" translate="no"><a href="https://social.librem.one/@eighthave" class="u-url mention" rel="nofollow noopener" target="_blank">@<span>eighthave</span></a></span> Agreed. People talking about <a href="https://social.vivaldi.net/tags/PQC" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>PQC</span></a> and breaking <a href="https://social.vivaldi.net/tags/e2ee" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>e2ee</span></a> in the future, while closed source apps, OSes and <a href="https://social.vivaldi.net/tags/ClientSideScanning" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>ClientSideScanning</span></a> ML/AI agents can simply take a detour around it today!</p>
Erik van Straten<p><span class="h-card" translate="no"><a href="https://ruhr.social/@ericalaeta" class="u-url mention" rel="nofollow noopener" target="_blank">@<span>ericalaeta</span></a></span> : I'm a Threema user, but this worries me: <a href="https://www.techradar.com/vpn/vpn-privacy-security/secure-encryption-and-online-anonymity-are-now-at-risk-in-switzerland-heres-what-you-need-to-know" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://www.</span><span class="ellipsis">techradar.com/vpn/vpn-privacy-</span><span class="invisible">security/secure-encryption-and-online-anonymity-are-now-at-risk-in-switzerland-heres-what-you-need-to-know</span></a></p><p>Source: Guillaume Tronix<br>(<span class="h-card" translate="no"><a href="https://defcon.social/@gtronix" class="u-url mention" rel="nofollow noopener" target="_blank">@<span>gtronix</span></a></span> ) in <a href="https://defcon.social/@gtronix/114230271744822975" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">defcon.social/@gtronix/1142302</span><span class="invisible">71744822975</span></a></p><p><span class="h-card" translate="no"><a href="https://chaos.social/@adfichter" class="u-url mention" rel="nofollow noopener" target="_blank">@<span>adfichter</span></a></span> </p><p><a href="https://infosec.exchange/tags/Threema" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Threema</span></a> <a href="https://infosec.exchange/tags/Signal" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Signal</span></a> <a href="https://infosec.exchange/tags/ChatApps" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>ChatApps</span></a> <a href="https://infosec.exchange/tags/Backdoor" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Backdoor</span></a> <a href="https://infosec.exchange/tags/ChatControl" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>ChatControl</span></a> <a href="https://infosec.exchange/tags/ClientSideScanning" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>ClientSideScanning</span></a> <a href="https://infosec.exchange/tags/Privacy" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Privacy</span></a></p>
Konstantin Macher<p>Dienstag 11.03. steht die <a href="https://eupolicy.social/tags/Chatkontrolle" class="mention hashtag" rel="tag">#<span>Chatkontrolle</span></a> wieder auf der Tagesordnung der Ratsarbeitsgruppe Strafverfolgung. Der polnische Vorsitz im Rat hat Ende Januar einen Vorschlag gemacht bei dem <a href="https://eupolicy.social/tags/ClientSideScanning" class="mention hashtag" rel="tag">#<span>ClientSideScanning</span></a> für Unternehmen nicht mehr verpflichtend wäre.</p><p>Aber: Unternehmen dürften freiwillig private Nachrichten scannen und werden dazu auch angehalten, außerdem Pflicht zu technischen Alterskontrollen.</p><p><span class="h-card" translate="no"><a href="https://eupolicy.social/@edri" class="u-url mention">@<span>edri</span></a></span> gibt einen Überblick und schaut in die 🔮 wie es weiter gehen könnte:<br /><a href="https://edri.org/our-work/poland-searches-for-silver-bullet-for-csa-regulation/" target="_blank" rel="nofollow noopener" translate="no"><span class="invisible">https://</span><span class="ellipsis">edri.org/our-work/poland-searc</span><span class="invisible">hes-for-silver-bullet-for-csa-regulation/</span></a></p>
Erik van Straten<p>Zojuist uninstalled (Android, Pixel 6)</p><p>Meer info: <a href="https://mastodon.social/@Tutanota/113969191214363432" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">mastodon.social/@Tutanota/1139</span><span class="invisible">69191214363432</span></a></p><p><a href="https://infosec.exchange/tags/CameraInDeWC" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>CameraInDeWC</span></a> <a href="https://infosec.exchange/tags/ClientSideScanning" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>ClientSideScanning</span></a> <a href="https://infosec.exchange/tags/AndroidSystemSafetyCore" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>AndroidSystemSafetyCore</span></a> <a href="https://infosec.exchange/tags/CSS" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>CSS</span></a> <a href="https://infosec.exchange/tags/ChatControl" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>ChatControl</span></a> <a href="https://infosec.exchange/tags/Privacy" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Privacy</span></a> <a href="https://infosec.exchange/tags/BigBrother" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>BigBrother</span></a> <a href="https://infosec.exchange/tags/BigTechIsEvil" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>BigTechIsEvil</span></a> <a href="https://infosec.exchange/tags/GoogleIsEvil" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>GoogleIsEvil</span></a></p>
nullagent<p>A few folks are questioning if AI scanning like what Android is doing can be missused. The last time a similar feature was coming to Apple's iOS the media rightly described it as an extremely dangerous warrantless surveillance tool.</p><p>Regardless of what Android developers intended this client side scanner to do it will be enlisted by governments of the world to spy on you and break strong encryption.</p><p><a href="https://9to5mac.com/2023/09/01/csam-scanning-flaw/" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">9to5mac.com/2023/09/01/csam-sc</span><span class="invisible">anning-flaw/</span></a></p><p><a href="https://partyon.xyz/tags/privacy" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>privacy</span></a> <a href="https://partyon.xyz/tags/cybersecurity" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>cybersecurity</span></a> <a href="https://partyon.xyz/tags/apple" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>apple</span></a> <a href="https://partyon.xyz/tags/android" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>android</span></a> <a href="https://partyon.xyz/tags/ai" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>ai</span></a> <a href="https://partyon.xyz/tags/clientsidescanning" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>clientsidescanning</span></a></p>
Freedom not Fear<p><a href="https://eupolicy.social/tags/ChatControl" class="mention hashtag" rel="tag">#<span>ChatControl</span></a> proposal failed in the Council of the EU again today! 🎉</p><p>Hungary tried to use its presidency to shame critical governments into agreeing to the proposed mass surveillance by forcing ministers to explain themselves during live-streamed public session. This plan backfired:<br />several countries took the floor to confirm on the record that this would undermine <a href="https://eupolicy.social/tags/cybersecurity" class="mention hashtag" rel="tag">#<span>cybersecurity</span></a>, attack <a href="https://eupolicy.social/tags/encryption" class="mention hashtag" rel="tag">#<span>encryption</span></a> with <a href="https://eupolicy.social/tags/ClientSideScanning" class="mention hashtag" rel="tag">#<span>ClientSideScanning</span></a> and violate fundamental rights!<br /><a href="https://video.consilium.europa.eu/event/en/27778" target="_blank" rel="nofollow noopener" translate="no"><span class="invisible">https://</span><span class="ellipsis">video.consilium.europa.eu/even</span><span class="invisible">t/en/27778</span></a><br /><a href="https://eupolicy.social/tags/StopScanningMe" class="mention hashtag" rel="tag">#<span>StopScanningMe</span></a></p>
Konstantin Macher<p>Kurioserweise hat Ungarn die Kritik an der <a href="https://eupolicy.social/tags/Chatkontrolle" class="mention hashtag" rel="tag">#<span>Chatkontrolle</span></a> heute gestärkt: wir haben die Bestätigung für unsere Kritik an <a href="https://eupolicy.social/tags/ClientSideScanning" class="mention hashtag" rel="tag">#<span>ClientSideScanning</span></a>, Angriff auf Verschlüsselung, unvereinbar mit Grundrechten etc. jetzt auf Kamera, ausgesprochen von Minister*innen im Rat der EU. Die Clips können wir jetzt jedes Mal zeigen, wenn die EU-Kommission wieder versucht diese Probleme zu leugnen!</p>
Freedom not Fear<p>There has not been progress on the <a href="https://eupolicy.social/tags/ChatControl" class="mention hashtag" rel="tag">#<span>ChatControl</span></a> proposal in Council of the EU because many governments still push for undermining encryption. <a href="https://eupolicy.social/tags/ClientSideScanning" class="mention hashtag" rel="tag">#<span>ClientSideScanning</span></a><br />The Council&#39;s own legal service has established that the proposal is incompatible with European fundamental rights and would violate the very essence of the right to privacy.</p>
Konstantin Macher<p>2021 wurde <a href="https://eupolicy.social/tags/Chatkontrolle" class="mention hashtag" rel="tag">#<span>Chatkontrolle</span></a> 1.0 beschlossen, eine TEMPORÄRE Ausnahme von der <a href="https://eupolicy.social/tags/ePrivacy" class="mention hashtag" rel="tag">#<span>ePrivacy</span></a>-Richtlinie und Online-Plattformen damit zum Scannen privater Kommunikation auf CSAM ermächtigt.<br />Aktuell soll Chatkontrollle 2.0 daraus eine Pflicht für Online-Anbieter zum Scannen nach bekanntem Material via <a href="https://eupolicy.social/tags/ClientSideScanning" class="mention hashtag" rel="tag">#<span>ClientSideScanning</span></a> machen.<br />Für freiwilliges Scannen nach unbekanntem Material und Grooming will Ungarn jetzt die Chatkontrolle 1.0 **AUF 10 JAHRE** verlängern. WTF<br /><span class="h-card" translate="no"><a href="https://chaos.social/@netzpolitik_feed" class="u-url mention">@<span>netzpolitik_feed</span></a></span>:<br /><a href="https://netzpolitik.org/2024/letzter-anlauf-zur-chatkontrolle-ungarn-will-zustimmung-zum-scannen-erzwingen/" target="_blank" rel="nofollow noopener" translate="no"><span class="invisible">https://</span><span class="ellipsis">netzpolitik.org/2024/letzter-a</span><span class="invisible">nlauf-zur-chatkontrolle-ungarn-will-zustimmung-zum-scannen-erzwingen/</span></a></p>
MaximilianBlum<p>Ich weiß zwar nicht was das <a href="https://linke.social/tags/FBI" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>FBI</span></a> in deutschen <a href="https://linke.social/tags/telegram" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>telegram</span></a> chats zu suchen hat. Aber der Fall zeigt auf, dass man weder <a href="https://linke.social/tags/Netzsperren" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Netzsperren</span></a>, noch <a href="https://linke.social/tags/Vorratsdatenspeicherung" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Vorratsdatenspeicherung</span></a> zur <a href="https://linke.social/tags/Bestandsdatenauskunft" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Bestandsdatenauskunft</span></a> noch ein technisches Aufbrechen der EzuE-<a href="https://linke.social/tags/Verschl%C3%BCsselung" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Verschlüsselung</span></a> oder technisches <a href="https://linke.social/tags/clientsidescanning" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>clientsidescanning</span></a> braucht, um Terror zu bekämpfen. <a href="https://linke.social/tags/s%C3%A4chsischeseparatisten" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>sächsischeseparatisten</span></a> <a href="https://linke.social/tags/Faschos" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Faschos</span></a> <a href="https://linke.social/tags/afd" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>afd</span></a> <span class="h-card" translate="no"><a href="https://ard.social/@tagesschau" class="u-url mention" rel="nofollow noopener" target="_blank">@<span>tagesschau</span></a></span> <a href="https://www.tagesschau.de/investigativ/ndr-wdr/rechtsextreme-saechsische-separatisten-fbi-100.html" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://www.</span><span class="ellipsis">tagesschau.de/investigativ/ndr</span><span class="invisible">-wdr/rechtsextreme-saechsische-separatisten-fbi-100.html</span></a></p>
DeepSec Conference ☑<p>DeepSec 2024 Talk: Insights on Client-Side Scanning and Alternatives in the Fight Against Child Sexual Abuse and Exploitation – Carolyn Guthoff</p><p>Content Warning: This talk may include mention of child sexual abuse and explo</p><p><a href="https://blog.deepsec.net/deepsec-2024-talk-insights-on-client-side-scanning-and-alternatives-in-the-fight-against-child-sexual-abuse-and-exploitation-carolyn-guthoff/" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">blog.deepsec.net/deepsec-2024-</span><span class="invisible">talk-insights-on-client-side-scanning-and-alternatives-in-the-fight-against-child-sexual-abuse-and-exploitation-carolyn-guthoff/</span></a></p><p><a href="https://social.tchncs.de/tags/Conference" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Conference</span></a> <a href="https://social.tchncs.de/tags/ChildSexualAbuseAndExploitation" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>ChildSexualAbuseAndExploitation</span></a> <a href="https://social.tchncs.de/tags/ClientSideScanning" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>ClientSideScanning</span></a> <a href="https://social.tchncs.de/tags/CSAE" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>CSAE</span></a> <a href="https://social.tchncs.de/tags/CSS" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>CSS</span></a> <a href="https://social.tchncs.de/tags/DeepSec2024" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>DeepSec2024</span></a> <a href="https://social.tchncs.de/tags/Talk" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Talk</span></a></p>
Erik van Straten<p><span class="h-card" translate="no"><a href="https://eupolicy.social/@kimvsparrentak" class="u-url mention" rel="nofollow noopener" target="_blank">@<span>kimvsparrentak</span></a></span> : met Chatcontrol wordt er geen encryptie gesloopt en jouw privacy is ondergeschikt aan de rechten van kinderen (alsus Dilan Yesilgöz, zie bijv. <a href="https://security.nl/posting/797615" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://</span><span class="">security.nl/posting/797615</span><span class="invisible"></span></a>).</p><p>Waarom het toch een bar slecht idee is, vooral voor kinderen: <a href="https://www.security.nl/posting/858499/Chatcontrol+brief+Bert+Hubert" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://www.</span><span class="ellipsis">security.nl/posting/858499/Cha</span><span class="invisible">tcontrol+brief+Bert+Hubert</span></a></p><p><span class="h-card" translate="no"><a href="https://bird.makeup/users/nwsoccontract" class="u-url mention" rel="nofollow noopener" target="_blank">@<span>nwsoccontract</span></a></span> <br><span class="h-card" translate="no"><a href="https://mastodon.nl/@altim" class="u-url mention" rel="nofollow noopener" target="_blank">@<span>altim</span></a></span> </p><p><a href="https://infosec.exchange/tags/OverDeRuggenVanMisbruikteKinderen" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>OverDeRuggenVanMisbruikteKinderen</span></a> <a href="https://infosec.exchange/tags/ChatControl" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>ChatControl</span></a> <a href="https://infosec.exchange/tags/ClientSideScanning" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>ClientSideScanning</span></a> <a href="https://infosec.exchange/tags/CSS" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>CSS</span></a></p>
Tarnkappe.info<p>📬 Ungarn will EU-weite Chatkontrolle noch durchsetzen<br><a href="https://social.tchncs.de/tags/Datenschutz" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Datenschutz</span></a> <a href="https://social.tchncs.de/tags/Netzpolitik" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Netzpolitik</span></a> <a href="https://social.tchncs.de/tags/Chatkontrolle" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Chatkontrolle</span></a> <a href="https://social.tchncs.de/tags/Clientsidescanning" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Clientsidescanning</span></a> <a href="https://social.tchncs.de/tags/Contexte" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Contexte</span></a> <a href="https://social.tchncs.de/tags/PatrickBreyer" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>PatrickBreyer</span></a> <a href="https://social.tchncs.de/tags/politico" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>politico</span></a> <a href="https://sc.tarnkappe.info/8c3a40" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://</span><span class="">sc.tarnkappe.info/8c3a40</span><span class="invisible"></span></a></p>
René Mayrhofer :verified: 🇺🇦<p>I did a talk at <a href="https://infosec.exchange/tags/hackmas" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>hackmas</span></a> on "Secure Messaging (and attacks against it)" and the great organization team has already put the video recording online at <br><a href="https://media.ccc.de/v/26cd6d27-247f-5cf3-8adb-54c87bc372b2" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">media.ccc.de/v/26cd6d27-247f-5</span><span class="invisible">cf3-8adb-54c87bc372b2</span></a>. Many thanks to the audience for so many insightful questions and discussions - it is rare that the audience is so engaged and aware of nuance! Slides are available at <a href="https://www.mayrhofer.eu.org/talk/secure-messaging-and-attacks-against-it/" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://www.</span><span class="ellipsis">mayrhofer.eu.org/talk/secure-m</span><span class="invisible">essaging-and-attacks-against-it/</span></a></p><p>Abstract: Secure messaging apps are one of the most-used app categories on current mobile devices, and a significant subset of human communication is handled through them. This makes them an interesting target for forensics, surveillance, and general information collection for intelligence services and police institutions. In this talk, we will discuss various options for such surveillance and their respective difficulties, pointing out which options do not seem realistic given all the practical considerations.</p><p>TL;DR: There is no good option for surveiling E2EE messenger apps; all of them are broken or practically unrealistic in various ways. I don't see an option to do that without real, significant problems that make all of us less safe. Please stop claiming that it is possible without these nasty issues.</p><p><a href="https://infosec.exchange/tags/ChatControl" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>ChatControl</span></a> <a href="https://infosec.exchange/tags/E2EE" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>E2EE</span></a> <a href="https://infosec.exchange/tags/SecureMessaging" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>SecureMessaging</span></a> <a href="https://infosec.exchange/tags/Signal" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Signal</span></a> <a href="https://infosec.exchange/tags/ClientSideScanning" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>ClientSideScanning</span></a> <a href="https://infosec.exchange/tags/Staatstrojaner" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Staatstrojaner</span></a></p>
Rainer Zufall<p>Zum Thema <a href="https://mastodon.social/tags/Chatkontrolle" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Chatkontrolle</span></a> und <a href="https://mastodon.social/tags/Clientsidescanning" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Clientsidescanning</span></a> ein Artikel von 2021: Dadurch das ein über Yahoo verschicktes Bild seines 30jährigen Freundes, der ostasiatischer Herkunft ist, fälschlich durch einen Computeralgorithmus als Missbrauchsdarstellung eines Kindes klassifiziert wird, wird ein Mann in Malmö von der Polizei festgenommen, misshandelt und verhört. Letztlich wird das Verfahren eingestellt. (Das wegen Polizeigewalt auch.)<br><a href="https://www.kontextpress.se/politik/babak-karimi-jag-misshandlades-av-maskerad-polis-i-mitt-eget-sovrum/" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://www.</span><span class="ellipsis">kontextpress.se/politik/babak-</span><span class="invisible">karimi-jag-misshandlades-av-maskerad-polis-i-mitt-eget-sovrum/</span></a></p>