Cybersecurity Brief – 2025-08-29

Fri, 29 Aug 2025 00:00:00 +0000

Major Incidents or Breaches

TransUnion suffered a data breach impacting over 4.4 million individuals in the US, exposing personal information but not credit reports or core credit data.
MathWorks (MATLAB developer) disclosed a ransomware attack that resulted in the theft of data belonging to over 10,000 individuals.
Google confirmed that the Salesloft breach is larger than previously reported, with attackers using stolen OAuth tokens to access both Google Workspace email accounts and Salesforce data.
The maintainers of the Nx build system reported a supply chain attack involving malicious npm packages and plugins, resulting in the leakage of over 2,300 GitHub, cloud, and AI credentials. This incident marks the first known use of AI-powered stealers in a supply chain attack.
Law enforcement agencies (FBI and Dutch Police) seized servers and domains associated with the VerifTools fake ID marketplace.
TransUnion and MathWorks incidents highlight continued targeting of large data repositories by threat actors, with significant personal data exposure.

Newly Discovered Vulnerabilities

A high-severity authentication bypass vulnerability was disclosed in Passwordstate, an enterprise password manager. Customers have been urged to patch immediately.
A flaw in the Visual Studio Code Marketplace allows attackers to republish previously deleted extensions under the same names, posing a risk to the software supply chain.
Researchers highlighted hidden vulnerabilities in popular project management tools (e.g., Trello, Asana), with risks including data exposure and insufficient backup protections.

Notable Threat Actor Activity

The China-linked APT group Salt Typhoon has exploited vulnerabilities in Cisco, Ivanti, and Palo Alto devices to breach over 600 organizations globally, including critical infrastructure in telecom, government, and military sectors. The group maintains persistent access for espionage purposes.
Cybercriminals are actively recruiting social engineering talent with fluent English skills, according to a new report on the cybercriminal recruitment ecosystem.
A new phishing-as-a-service (PhaaS) platform named “Salty 2FA” is being used to bypass MFA and steal Microsoft 365 credentials, targeting organizations across North America and Europe.
The TamperedChef malware campaign uses malvertising and fake PDF editor sites to deliver an information stealer that exfiltrates credentials and cookies.
North Korean IT worker schemes were targeted by new US Treasury sanctions, exposing $600K in crypto transfers and over $1M in profits for DPRK-linked threat actors.
Threat actors have abused Anthropic’s Claude AI to develop ransomware and automate data extortion campaigns.
Akira and Cl0p remain among the most active ransomware-as-a-service groups, with reports noting increased use of AI by both established and emerging gangs.

Trends, Tools, or Tactics of Interest

First documented AI-weaponized supply chain attack occurred via the Nx build system, where AI-powered stealers were used to rapidly exfiltrate developer secrets.
There is a notable rise in requests for ZIP files in web honeypot logs, indicating a possible trend in attackers seeking to exploit ZIP-based delivery or exfiltration methods.
Shadow IT continues to expand organizational attack surfaces, with researchers finding widespread exposed backups, open Git repositories, and accessible admin panels containing sensitive data.
RedExt, a browser extension-based C2 framework, has been released for red team operations, enabling data collection and command-and-control via Chromium-based browsers.
Meta reported shutting down millions of WhatsApp accounts linked to scam centers, reflecting ongoing large-scale anti-fraud operations.
Increasing use of malvertising and fake software download sites to deliver malware, as seen in the TamperedChef campaign.
Affiliates are flocking to scam gambling sites that lure victims with free credits and steal cryptocurrency deposits.
Microsoft Word for Windows will soon autosave and default to cloud storage for new documents.
CISA, FBI, and NSA issued a global advisory on the widespread espionage activities of Chinese nation-state actors targeting network devices.

Regulatory or Policy Developments

The US Treasury’s Office of Foreign Assets Control (OFAC) imposed new sanctions on individuals and entities associated with North Korean IT worker schemes.
The FCC disconnected over a thousand voice operators from the public telephone network for failing to combat robocalling.
CISA released updated Software Bill of Materials (SBOM) guidelines, receiving mixed industry reviews regarding their effectiveness and practical utility.

Cybersecurity Brief – 2025-05-28

Wed, 28 May 2025 00:00:00 +0000

Major Incidents or Breaches

Adidas has disclosed a data breach following a compromise at a customer service provider, resulting in the theft of data from individuals who contacted the company’s customer service help desk. Payment or financial information was not affected.
MathWorks, the developer of MATLAB, has confirmed a ransomware attack that caused ongoing service outages. The specific ransomware group involved and whether data was exfiltrated remain unclear.
Commvault’s Metallic SaaS service has been targeted by threat actors who gained access to Microsoft 365 environments of a small number of customers, according to a CISA alert.
DragonForce ransomware successfully breached a managed service provider (MSP) and used the SimpleHelp remote monitoring and management (RMM) platform to steal data and deploy ransomware encryptors on downstream customer networks.
Apple reported it prevented over $9 billion in fraudulent transactions via the App Store over the past five years, including $2 billion in 2024, amid rising threats targeting the platform.

Newly Discovered Vulnerabilities

Microsoft has released an emergency update for Windows Server 2022 to address a known issue causing Hyper-V virtual machines to freeze or restart unexpectedly.
Misconfigured Docker API instances are being exploited by new self-spreading malware that transforms them into Dero cryptocurrency mining botnets.

Notable Threat Actor Activity

Russian threat group Void Blizzard (also known as Laundry Bear) has been linked to breaches of over 20 NGOs using Evilginx phishing via fake Microsoft Entra pages. The group has also been connected to the September 2024 Dutch police security breach.
Cybercriminals are cloning legitimate antivirus websites (specifically Bitdefender) to distribute the Venom remote access trojan (RAT) and steal cryptocurrency wallets.
The Luna Moth (Silent Ransom Group) is conducting stealth phishing campaigns, including vishing (voice phishing) attacks, to extort law firms, as highlighted in a recent FBI alert.
A novel campaign is using search engine optimization (SEO) poisoning to trick employees searching for payroll portals into payroll fraud, targeting mobile devices.
The Danabot botnet infrastructure has been seized in the US and key operators indicted, disrupting a major Russian cybercrime operation.
An Iranian national has pleaded guilty to involvement in RobbinHood ransomware attacks that targeted US cities and organisations.

Trends, Tools, or Tactics of Interest

Threat actors are increasingly using AI-generated audio to impersonate senior US officials in phishing attacks, according to an FBI warning.
Attackers are leveraging the SimpleHelp RMM platform in supply chain ransomware attacks, specifically in the DragonForce incident.
SEO poisoning is being used to redirect employees searching for payroll portals to malicious sites, facilitating payroll diversion fraud.
Self-spreading malware targeting Docker containers is automating the creation of cryptocurrency mining botnets.
There is a trend of cybercriminals cloning legitimate software vendor websites to distribute malware such as Venom RAT.
Law enforcement and industry partnerships are achieving significant disruption of cybercrime infrastructure, as demonstrated by the Danabot takedown.

Regulatory or Policy Developments Affecting the Security Industry

The FBI has issued multiple alerts regarding evolving social engineering and extortion tactics, including the use of AI-generated media and vishing campaigns.
CISA has published an advisory on attacks targeting Commvault’s SaaS environment, urging increased vigilance for SaaS providers and their customers.

MathWorks on DanSec Daily

Cybersecurity Brief – 2025-08-29

Major Incidents or Breaches

Newly Discovered Vulnerabilities

Notable Threat Actor Activity

Trends, Tools, or Tactics of Interest

Regulatory or Policy Developments

Cybersecurity Brief – 2025-05-28

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