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24.02.2025

Trump 2.0 Brings Cuts to Cyber, Consumer Protections

Krebs Security 24.02.2025 0:02
One month into his second term, President Trump’s actions to shrink the government through mass layoffs, firings and withholding funds allocated by Congress have thrown federal cybersecurity and consumer protection programs into disarray. At the same time, agencies are battling an ongoing effort by the world’s richest man to wrest control over their networks and data.

Implementing Cryptography in AI Systems

Schneier on Security 21.02.2025 16:33
Interesting research: “How to Securely Implement Cryptography in Deep Neural Networks.”
Abstract: The wide adoption of deep neural networks (DNNs) raises the question of how can we equip them with a desired cryptographic functionality (e.g, to decrypt an encrypted input, to verify that this input is authorized, or to hide a secure watermark in the output). The problem is that cryptographic primitives are typically designed to run on digital computers that use Boolean gates to map sequences of bits to sequences of bits, whereas DNNs are a special type of analog computer that uses linear mappings and ReLUs to map vectors of real numbers to vectors of real numbers. This discrepancy between the discrete and continuous computational models raises the question of what is the best way to implement standard cryptographic primitives as DNNs, and whether DNN implementations of secure cryptosystems remain secure in the new setting, in which an attacker can ask the DNN to process a message whose “bits” are arbitrary real numbers…

4 Low-Cost Ways to Defend Your Organization Against Deepfakes

Dark Reading 21.02.2025 16:00
Every organization should be exploring a layered approach in which artificial and human intelligences come together to form a rich, dynamic, and multifaceted deepfake defense strategy tailored to its needs.

Ransomware im LLM: Forscher füttern ChatGPT mit Daten der "Black Basta"-Bande

Heise Security 21.02.2025 14:27
Kriminelle hinter der "Ransomware as a Service" haben sich zerstritten, nun veröffentlichte ein Insider Chatnachrichten. Sie geben tiefe Einblicke.

Angriffe auf KI-gestützte Software abwehren – Secure by Design

Heise Security 21.02.2025 8:27
Die Absicherung von Software mit KI erfordert eine getrennte Betrachtung von Input, Output und Datenverarbeitung zum Schutz vor Manipulation und Deepfakes.

Verschlüsselte Chats: Russische Hacker bei Spionage über Signal erwischt

Golem 20.02.2025 12:50
Russische Cyberakteure haben ein Signal-Feature ausgenutzt, um sich Zugriff auf Chats ihrer Opfer zu verschaffen. Ein Update soll nun davor schützen. (Cyberwar, Phishing)