Cybersecurity Brief – 2025-10-30

Thu, 30 Oct 2025 00:00:00 +0000

Major Incidents or Breaches

A subsidiary of Japanese marketing and PR giant Dentsu (Merkle) experienced a data breach resulting in the theft of sensitive employee, client, and supplier data by unidentified threat actors.
The Canadian Centre for Cyber Security reported that hacktivists breached multiple water and energy facilities, gaining access to and modifying industrial controls across Canada.
A data leak exposed information about students attending Iran’s Ministry of Intelligence and Security (MOIS) training academy.
Microsoft experienced a global DNS outage affecting Azure and Microsoft 365 services, preventing customer logins and access.
No evidence was found of a Gmail breach; recent panic was due to circulation of old stolen credentials on the dark web.

Newly Discovered Vulnerabilities

The Anti-Malware Security and Brute-Force Firewall WordPress plugin (100,000+ installs) contains a vulnerability allowing site subscribers to read any file on the server, exposing private data.
Multiple security flaws in Dassault Systèmes DELMIA Apriso and XWiki are under active exploitation. In DELMIA Apriso, two vulnerabilities can be chained to gain privileged access and execute arbitrary code remotely. XWiki vulnerabilities are being used in cryptocurrency mining operations.
A new attack method, TEE.fail, targets DDR5 memory to steal cryptographic keys from Intel and AMD Trusted Execution Environments (TEEs), with both vendors issuing advisories.
OpenAI’s Atlas browser and similar agentic web browsers are exposed to context poisoning and prompt injection attacks, enabling attackers to manipulate AI model outputs and privacy.

Notable Threat Actor Activity

Russian-origin threat actors targeted Ukrainian organizations using living-off-the-land (LotL) tactics to exfiltrate data and maintain persistent access.
The “PhantomRaven” campaign published over 120 malicious npm packages, stealing developer credentials, authentication tokens, CI/CD secrets, and GitHub credentials from Windows, Linux, and macOS systems. Over 86,000 downloads were recorded.
Various botnets, including Mirai, Gafgyt, and Mozi, have increased automated attacks against PHP servers, IoT devices, and cloud gateways, exploiting vulnerabilities and misconfigurations to expand their control over internet-connected assets.

Trends, Tools, or Tactics of Interest

76% of organizations report struggling to keep pace with AI-powered attacks, with adversaries increasing sophistication and speed in ransomware and other threats.
New AI-targeted cloaking attacks are tricking AI crawlers (e.g., Perplexity, Atlas, ChatGPT) into indexing and citing fabricated information as facts, highlighting susceptibility of AI systems to context poisoning.
MITRE released ATT&CK v18, updating detection, mobile, and ICS (Industrial Control Systems) matrices with new defensive techniques and threat mappings.
BeyondTrust predicts a rise in attacks leveraging ghost identities, poisoned accounts, and autonomous AI agents, with traditional defenses proving less effective against emerging vectors.
Increased use of “invisible” dependencies and multi-layered obfuscation in malicious npm packages to evade detection.
Security experts note a sharp increase in cloud-focused attacks by botnets exploiting web-exposed and misconfigured assets.

Regulatory or Policy Developments Affecting the Security Industry

Google Chrome will default to HTTPS for public sites starting October 2026, prompting users before allowing access to non-secure connections.
Microsoft introduced a security-focused change for Azure VMs, but provided a temporary reprieve after concerns it could disrupt apps requiring public internet access.

Cybersecurity Brief – 2025-10-29

Wed, 29 Oct 2025 00:00:00 +0000

Major Incidents or Breaches

Dentsu Data Breach: Japanese advertising giant Dentsu disclosed a cybersecurity incident at its U.S. subsidiary Merkle, resulting in the exposure of staff and client data.
Oracle EBS Attacks: Numerous organizations, including Schneider Electric and Emerson, have been identified as victims of attacks exploiting Oracle E-Business Suite zero-day CVE-2025-61882. Data stolen from these companies has been made available on the Cl0p ransomware leak site.
Swedish Power Grid Incident: Hackers targeted a Swedish power grid operator, stealing information from a file transfer solution. The country’s power supply was not affected.
183 Million Credentials Traded: Cybercriminals are trading 183 million stolen credentials on Telegram and dark web forums, with 16.4 million email addresses not previously seen in data breaches.

Newly Discovered Vulnerabilities

TEE.Fail Side-Channel Attack: Academic researchers disclosed TEE.Fail, a side-channel attack enabling extraction of secrets from trusted execution environments in Intel, AMD, and NVIDIA CPUs, undermining confidential computing.
QNAP NetBak PC Agent Vulnerability: The software is affected by a recent critical ASP.NET Core flaw that allows HTTP request smuggling, data access, server file modification, or denial-of-service.
Dassault Systèmes DELMIA Apriso: CISA warned of two actively exploited vulnerabilities in this manufacturing operations management platform.
Chrome Zero-Day: A now-patched Chrome zero-day was exploited to deliver Memento Labs’ LeetAgent spyware.
BiDi Swap Phishing Technique: Attackers are abusing bidirectional text to craft fake URLs that appear legitimate, reviving a browser flaw for phishing.
Atroposia Malware: A new malware-as-a-service platform, Atroposia, includes a built-in local vulnerability scanner for post-compromise exploitation.

Notable Threat Actor Activity

BlueNoroff (North Korea): The BlueNoroff APT group is running twin campaigns (GhostCall and GhostHire) targeting Web3 and blockchain sectors with cross-platform malware, using fake business collaboration and job recruitment lures.
Qilin Ransomware: The Qilin operation is abusing Windows Subsystem for Linux (WSL) to run Linux encryptors on Windows systems, evading traditional security tools.
Herodotus Android Trojan: A new banking trojan, Herodotus, is targeting Italy and Brazil, using random delay injection to mimic human typing and bypass anti-fraud and security detection mechanisms.
Aisuru Botnet: The Aisuru botnet, previously responsible for massive Mirai-class DDoS attacks exceeding 20 Tbps, has shifted to operating as a residential proxy network for more sustainable monetization.
YouTube Ghost Network: This malware operation leverages compromised YouTube accounts and botnets to distribute infostealers, with activity tripling in 2025.

Trends, Tools, or Tactics of Interest

AI-Powered Attacks in Africa: Cybersecurity firms report a surge in AI-driven phishing, deepfakes, and impersonation attacks across Africa, with adversaries testing new techniques on government and enterprise targets.
Deepfake-as-a-Service: The emergence of voice cloning and synthetic media fraud services is impacting enterprise security, with documented cases of business compromise and evolving detection tactics.
Invisible Characters in Phishing: Attackers are using invisible characters in email subject lines to bypass detection and trick recipients.
Grok Abuse for Phishing: Attackers are exploiting the Grok platform to distribute phishing links.
Surge in Credential Theft: Large-scale credential theft and trading continues unabated, with significant numbers of newly compromised emails.
Chrome HTTP Warnings: Google Chrome will begin warning users before connecting to insecure HTTP sites starting with version 154 in October 2026.

Regulatory or Policy Developments

UN Cybercrime Convention: Around 70 countries have signed a new UN cybercrime convention, though concerns have been raised about expanded surveillance and potential criminalization of security research.
Python Software Foundation Grant Rejection: The PSF withdrew a $1.5 million U.S. National Science Foundation grant proposal due to terms that conflicted with its diversity and inclusion commitments.
Microsoft Copilot Lawsuit: The Australian Competition and Consumer Commission (ACCC) has filed suit against Microsoft, alleging the company misled 2.7 million Australians into subscribing to Copilot M365.
Windows 11 Security Update: Microsoft released the KB5067036 preview update, introducing the Administrator Protection cybersecurity feature for Windows 11 24H2 and 25H2.

Merkle on DanSec Daily

Cybersecurity Brief – 2025-10-30

Major Incidents or Breaches

Newly Discovered Vulnerabilities

Notable Threat Actor Activity

Trends, Tools, or Tactics of Interest

Regulatory or Policy Developments Affecting the Security Industry

Cybersecurity Brief – 2025-10-29

Major Incidents or Breaches

Newly Discovered Vulnerabilities

Notable Threat Actor Activity

Trends, Tools, or Tactics of Interest

Regulatory or Policy Developments