ZeroHour

Source: ESET WeLiveSecurity

9 stories

GuardBreaker: Derailing AI-assisted malware analysis with a code comment

ESET names 'GuardBreaker': UAC-0099 embeds a nuclear-weapon question in VBScript comments to trip LLM scanner guardrails during analysis of its MATCHBOIL loader.

ESET researchers observed the Russia-aligned group UAC-0099 inserting a decoy prompt injection into a VBScript used to install its MATCHBOIL loader in an attack against a Ukrainian target, aiming to make LLM-based code scanners refuse and stop inspecting the file. The comment triggers safety guardrails with a request about building a nuclear weapons but has no runtime effect. Similar LLM-thwarting tricks have appeared in malicious PyPI and npm packages reported by Socket and StepSecurity. ESET recommends multi-model cross-validation of AI-assisted analysis and treating missing LLM output as requiring further checks.

ESET WeLiveSecurityupdated · 4d agofirst · 5d agoAI safety & security 3 sources1

Safe word: What is it and why do you need one?

ESET recommends pre-agreed family safe words to counter AI voice-clone scams such as virtual kidnapping, as one-in-four Americans report receiving deepfake calls.

ESET outlines how scammers use just seconds of audio scraped from social media or work content to create convincing voice clones, with a Hiya report finding one-in-four Americans received a deepfake voice call in the past 12 months. Common schemes include virtual kidnapping calls mixing cloned voices with sobbing and background noise. A pre-agreed, non-OSINT-discoverable safe word, plus callback verification via known numbers and 2FA, reduces success rates of these frauds.

ESET WeLiveSecurity · 6d agoPhishing & fraud in the wild

I’ve been deepfaked: What do I do?

ESET outlines steps for deepfake victims: preserving evidence, using platform reporting tools, and legal remedies like the US TAKE IT DOWN Act and StopNCII.org.

ESET published a how-to guide for people who discover deepfakes of themselves, covering evidence preservation, platform-specific reporting on Google, Facebook, Instagram, TikTok, YouTube, and X, and escalation to publishers or data protection regulators. It notes the US TAKE IT DOWN Act criminalizes non-consensual intimate imagery (NCII) and requires 48-hour takedowns, while UK and EU laws add creation offenses and GDPR Article 17 erasure rights. Services like StopNCII.org and TakeItDown.NCMEC.org hash images so participating platforms such as Meta, TikTok, Reddit, and X can find and remove matching copies.

ESET WeLiveSecurity · 13d agoAI safety & security

This month in security with Tony Anscombe – August 2026 edition

ESET's August 2026 recap covers the Hugging Face hack, attacks on critical infrastructure, and a spoofed in-flight Wi-Fi network.

ESET's monthly video with Tony Anscombe recaps major cybersecurity stories from August 2026. Topics include the Hugging Face hack, attacks against critical infrastructure, and a spoofed in-flight Wi-Fi network used against passengers.

ESET WeLiveSecurity · 15d agoIndustry

AI-driven OSINT in the wrong hands – and why everyone could be a target for fraud

ESET warns that cheap AI-powered OSINT tooling is making ordinary people viable targets for tailored cyber fraud.

ESET published guidance on how AI-driven OSINT lowers the cost for cybercriminals to research potential fraud victims. The article explains how publicly available information can be aggregated to build convincing social engineering lures. It also outlines practical steps individuals can still take to reduce their exposure.

ESET WeLiveSecurity · 19d agoPhishing & fraud

How QR-code phishing can slip past corporate security measures

ESET explains how QR-code phishing (quishing) bypasses corporate security controls and offers guidance for defenders to close the gap.

ESET WeLiveSecurity published an analysis of quishing, describing QR-code phishing as an increasingly popular alternative to traditional phishing. Because QR codes push victims to scan and open links on personal devices, they often evade corporate email security gateways and URL inspection. The article outlines how businesses can close the resulting gap with appropriate security measures and user awareness.

ESET WeLiveSecurity · 29d agoPhishing & fraud

Black Hat USA 2026: Will vulnerability discovery eventually decline in the AI era?

ESET's Black Hat USA 2026 coverage weighs whether AI-driven vulnerability discovery will decline and whether it will make future software safer.

ESET's WeLiveSecurity previews discussions from Black Hat USA 2026 about the current surge in AI-driven vulnerability discovery. The piece questions whether this surge will eventually decline and whether today's AI-assisted flaw finding will translate into safer software tomorrow. No specific vulnerability, incident, or product is described.

ESET WeLiveSecurity · Aug 13, 2026Industry

Black Hat USA 2026: What the Hugging Face hack tells us about human responsibility

ESET's Black Hat USA 2026 talk argues the Hugging Face hack involving OpenAI models shows autonomous intrusions increase the need for human oversight.

ESET presented a Black Hat USA 2026 session examining the Hacking Face incident that involved OpenAI models. The talk contends that as hacking becomes more autonomous, human responsibility and oversight become more important, not less. The piece is commentary on AI security accountability rather than disclosure of new technical details.

ESET WeLiveSecurity · Aug 13, 2026AI safety & security

Black Hat USA 2026: AI is racing ahead of cybersecurity controls

Black Hat USA 2026 commentary says AI adoption is racing ahead of cybersecurity controls, with accountability the key unresolved question.

ESET's commentary on Black Hat USA 2026 reports that AI dominated the conference agenda while cybersecurity controls lag behind AI adoption. The clearest takeaway, per the piece, concerns who is accountable when AI-driven systems fail rather than what AI can technically do. The item is opinion and conference coverage with no incident details.

ESET WeLiveSecurity · Aug 12, 2026Industry