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Bruce Schneier Blog · 2h#

AI Doesn’t Have to Go Rogue to Break the World

This essay is adapted from a keynote speech delivered at the DEF CON 34 conference in Las Vegas on August 7, 2026. The essay originally appeared in CyberScoop . I want to talk about AI hacking. There are three aspects: people hacking AI…

The Hacker News · 3h#

When an AI Agent Goes Wrong, Can You Stop It?

Suppose an AI agent is asked to sort support tickets and look up account details. A ticket contains instructions that lead the agent to export records to an unfamiliar destination. The agent can make the request because its identity has…

ArXiv Crypto · 10h#

Sequential Membership Inference Attacks

arXiv:2602.16596v3 Announce Type: replace-cross Abstract: Modern AI models are not static. They go through multiple updates in their lifecycles. We propose to design Sequential Membership Inference (SeMI) attacks leading to tighter privacy…

ArXiv Crypto · 10h#

Privilege and confidentiality in generative AI workflows

arXiv:2607.05479v2 Announce Type: replace Abstract: Generative AI (GenAI) systems store and process client data in three distinct ways: in the model's parameters through training and memorisation, in the context window during a live…

ArXiv Crypto · 10h#

PrivacySIM: Evaluating LLM Simulation of User Privacy Behavior

arXiv:2605.12147v2 Announce Type: replace Abstract: Large language models (LLMs) are increasingly used to simulate human behavior, but their ability to simulate individual privacy decisions is not well understood. In this paper, we…

ArXiv Crypto · 10h#

Tamper-Proofing with Self-Modifying Code

arXiv:2604.12407v2 Announce Type: replace Abstract: Classical computability theory tells us that self-modifying code (SMC) on a deterministic universal Turing machine can be simulated by non-SMC code on the same model. That abstraction…

Bruce Schneier Blog · 1j#

Another Way Police Are Locating People from Their Smartphones

Penlink’s Webloc is an application that locates people using information from the weather, gaming, email, and religious apps on their phone. It’s sold to the police. The tool collects vast quantities of location data from smartphones via…

Bleeping Computer · 1j#

eMudhra revokes 8 more CA certificates after private key mishap

Certificate authority eMudhra has revoked eight additional intermediate CA certificates after an investigation into its recent certificate security incident found improper handling of private keys during the certificate-generation process.…

Krebs on Security · 1j#

Who Runs the Ransomware Group Qilin?

The cybercrime group Qilin has emerged as the world’s most active ransomware affiliate program, claiming at least 365 victim organizations in the past three months alone. But even top Russian hackers make operational security mistakes, and…

Bleeping Computer · 1j#

eBPF Rootkits: Why Underground Actors Are Taking Notice

Linux eBPF rootkits can hide malicious activity and evade traditional detection methods without loading kernel modules. Flare reveals how these techniques are spreading through underground forums, where threat actors are sharing rootkit…

Bleeping Computer · 2j#

N-able releases security hotfixes for zero-day vulnerabilities

N-able released hotfixes to address zero-day bugs affecting its N-central remote monitoring and management (RMM) platform, which were publicly disclosed over the weekend and forced it to take vulnerable hosted environments offline. [...]

Bruce Schneier Blog · 2j#

Three People Arrested for AI-Enhanced Impersonation Fraud

It’s hard to believe how lucrative this crime can be: According to a press release from the United States attorney’s office for the southern district of New York, three men ­ Jacob Soall, Sharon Hazan, and Guy Sheetrit ­ were arrested for…