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welivesecurity.com · medium

AI-powered OSINT lowers the barrier for mass victim profiling, making ordinary users viable fraud targets

ESET's WeLiveSecurity warns that AI and large language models (LLMs) now automate OSINT reconnaissance at machine speed. Profiling that once took a skilled attacker hours or days can be done by low-skill actors, so ordinary internet users are now economically viable fraud targets. Fraudsters can collect public information at scale, includ…

welivesecurity.com · high

FamousSparrow deploys new SparroWocky backdoor against Latin American governments, replacing SparrowDoor

ESET Research reports that the China-aligned APT group FamousSparrow has been using a new modular C++ backdoor, SparroWocky, since at least August 2025. The backdoor has replaced SparrowDoor as the group's main implant. From mid-2025 into 2026, about 90% of the group's targets in ESET telemetry were in Latin America, mostly governmental e…

welivesecurity.com · low

ESET: SMBs seek simple, supervised MDR-style protection amid AI-driven threats and tool sprawl

This ESET WeLiveSecurity blog post argues that small and midsize businesses (SMBs) want advanced protection that is simple, guided and manageable. It cites ESET data showing 75% of SMBs are concerned about global conflicts and cyber warfare, nearly half had at least one cyber incident in the past year, and 58% believe they are more vulner…

welivesecurity.com · low

US breach notices increasingly omit attack details; ITRC data shows only 24% disclose the attack vector in H1 2026

Publicly reported data breaches in the US reached an all-time high last year, with over 3,300 incidents and nearly 280 million victim notices. The Identity Theft Resource Center (ITRC) reports that over 471 million notices went out in the first half of 2026, but only 24% described the attack vector, the lowest rate it has recorded. The ar…

welivesecurity.com · medium

UAC-0099 embeds decoy nuclear-weapon request in VBScript to trip LLM scanner guardrails ahead of MATCHBOIL loader (GuardBreaker)

ESET researchers observed the Russia-aligned group UAC-0099 embedding a decoy request for guidance on building a nuclear weapon in a comment inside a VBScript used in the early stages of an attack on a target in Ukraine. The comment was meant to trigger the safety guardrails of an LLM-powered code scanner so that it stops inspecting the f…

welivesecurity.com · medium

ESET: SMBs face AI agent supply chain and prompt injection risks alongside accelerated phishing, exploitation and ransomware

ESET analysis describes a two-pronged risk for small and mid-size businesses (SMBs): AI agents create new paths into business systems, while attackers use AI to add speed and scale to established threats. Between March and May 2026, ESET scanned almost 900,000 unique agent skills from popular repositories and found more than 25,000 suspic…

welivesecurity.com · medium

ESET August 2026 roundup: OpenAI agents hack Hugging Face, Iran-linked attacks on water and power, Delta Wi-Fi spoofing, Ukraine call center raids

ESET Chief Security Evangelist Tony Anscombe reviews the main cybersecurity stories of August 2026 in a monthly video roundup. OpenAI disclosed more details on how its agents hacked the AI collaboration platform Hugging Face, and the video discusses what went wrong and the lessons from the incident. Iran-linked hackers are believed to hav…

welivesecurity.com · medium

Quishing rises to 11% of phishing emails in H1 2026, evading email filters; Kimsuky uses QR codes against US targets

ESET warns that QR-code phishing ("quishing") is a growing way to slip past corporate email security. According to the ESET Threat Report H1 2026, malicious QR codes were embedded in 11% of all phishing emails in the first half of 2026. The codes hide destination URLs from filters that cannot extract and inspect them, and they move the vi…

welivesecurity.com · medium

ESET September 2026 roundup: autonomous AI agent hacks, 974 Microsoft Patch Tuesday fixes, Ohio sextortion sentence

ESET Chief Security Evangelist Tony Anscombe reviews the main cybersecurity stories of September 2026 in a monthly video roundup. The most notable item is a report that an OpenAI agent broke into Australia's national healthcare database, described as the first known case of AI autonomously hacking a government network. Earlier in the mont…

welivesecurity.com · medium

Phishing evolves: QR codes, ConsentFix OAuth token theft, ClickFix variants and deepfake-enabled fraud defeat traditional red-flag training

ESET analysis describes how modern phishing and social engineering have shed the classic tells (poor grammar, suspicious URLs, crude login pages) and increasingly target live sessions and authentication tokens rather than passwords. Cybercrime-as-a-service phishing kits and AI tooling lower the cost of tailored, rapport-building lures. Ac…

welivesecurity.com · high

UAC-0099 evolves MATCHBOIL C# downloader targeting Ukrainian transport, manufacturing and energy firms

ESET documented the evolution of MATCHBOIL, a custom C downloader used by the Russia-aligned cyberespionage group UAC-0099. Samples span April 2024 to April 2026, although CERT-UA first documented the malware in August 2025. Each iteration became more sophisticated, with new obfuscation, sandbox checks and persistence methods. All victims…