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Cisco disclosed CVE-2026-20321, a command injection vulnerability in the web-based management API of Cisco Application Policy Infrastructure Controller (APIC). An authenticated, remote attacker with valid administrative credentials could execute arbitrary commands as root on the underlying operating system. Cisco rates the Security Impact…
Cisco disclosed CVE-2026-76488, a medium-severity vulnerability in the export policies functionality of Cisco Application Policy Infrastructure Controller (APIC). An authenticated remote attacker with valid administrative credentials could read sensitive files from the underlying file system of an affected device. The files include key ma…
Cisco disclosed CVE-2026-20032, a Medium-rated vulnerability in the Python interpreter of Cisco NX-OS Software. An authenticated local attacker with low privileges and Python execution rights can escape the Python sandbox and reach the underlying operating system of the device. The flaw stems from insufficient validation of user-supplied …
The DNS root zone is scheduled to switch its key-signing key (KSK) on October 11, 2026, only the second root KSK rollover ever. KSK-2024 (key tag 38696) will replace KSK-2017 (key tag 20326) as signer of the root DNSKEY set. DNSSEC-validating resolvers that do not trust the new key could fail validation and make healthy websites under any…
Following reported Ukrainian drone strikes on three Yandex facilities in Russia between October 7 and 11, claims spread that Russian bot farms and influence operations had been knocked offline. Cloudflare analyzed Radar and Bot Management data for the two Yandex ASNs, AS13238 (search) and AS200350 (Yandex.Cloud). It found no evidence that…
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…
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…
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…
A keynote at Black Hat USA 2026 by associate professor Yan Shoshitaishvili and his undergraduate students at Arizona State University examined the growing use of AI models for vulnerability discovery. The team used the 479 Linux kernel vulnerabilities attributed to Anthropic's Claude Mythos (as reported by the Washington Post) as a benchm…
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…
This ESET blog post argues that AI is speeding up the threat landscape for SMBs, both by empowering threat actors and by widening the attack surface as businesses adopt AI faster than they govern it. The ESET SMB Cyber Readiness Index 2026 reports that 73% of SMBs are integrating AI, 40% lack a proper AI policy, and 45% suffered a cyberse…
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…
Scammers continue to exploit Bitcoin/crypto ATMs as an irreversible payment channel in impersonation fraud. According to the FBI, 13,460 such complaints in 2025 resulted in $389 million in losses, a 23% rise in volume and 58% rise in losses over 2024. Victims over 50 lost more than $302M, and those over 60 accounted for $257.4M. The scam …
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…
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…
A modular phishing campaign targets YouTube creators with personalized sponsorship offers from fake brand representatives. One variant impersonates Hollyland, a maker of wireless video transmission equipment, and also Nike and Spotify. Victims are led through a convincing fake collaboration platform to a bogus "Sign in with Google" page t…
Scammers are exploiting the annual Medicare Open Enrollment period (October 15 to December 7) as a pretext to impersonate insurers, agencies or Medicare itself. Contact comes by phone, SMS, email, social media and malicious Google ads that lead to spoofed, official-looking websites. Lures include plan changes, card replacement, lower prem…
This ESET WeLiveSecurity article explains email bombing (also called form, list or subscription bombing) and cites a September report of a Virginia woman flooded with hundreds of emails in 24 hours. The flood hid a genuine bank alert about a fraudulent laptop purchase. Attackers use bots to sign a harvested email address up to many legiti…
TrustedSec analyzed a multi-stage malware loader that starts as obfuscated Python bytecode (.pyc, CPython 3.13) and ends in an encrypted .NET payload. The chain layers Kramer Python obfuscation, two Donut shellcode layers and a laZzzy shellcode-loader PE, so a signature for any single format misses the others. The author unpacked it with …
Around October 5, 2026, an anonymous onion site called The Luna Moth Files claimed to expose internal material from Silent Ransom Group (SRG), also tracked as Luna Moth and UNC3753. The purported archive includes chat exports, a vishing document, screenshots and a purported fake employee résumé. The publisher and the way the archive was o…
