Grandstream on DanSec Daily

Cybersecurity Brief – 2026-02-22

Sun, 22 Feb 2026 00:00:00 +0000

Major Incidents or Breaches

Over 600 FortiGate firewalls in 55 countries were compromised over a five-week period by a Russian-speaking, financially motivated threat actor. The campaign leveraged commercial generative AI services for various stages of the attack, including reconnaissance, exploit development, and scripting. Amazon has issued warnings regarding the scale and sophistication of the breaches.

Newly Discovered Vulnerabilities

A critical vulnerability (CVE-2026-2329) in Grandstream phone systems allows unauthenticated remote code execution with root privileges. Exploitation of this flaw could enable attackers to intercept calls and gain full control over affected devices.

Notable Threat Actor Activity

The threat actor responsible for the FortiGate breaches utilised generative AI tools to enhance operational efficiency, automate reconnaissance, and develop custom exploits, demonstrating the increasing use of AI in advanced cybercriminal operations.
Intellexa’s Predator spyware has been observed hooking into iOS SpringBoard to suppress visual indicators of microphone and camera usage, enabling covert surveillance by streaming audio and video feeds to operators without alerting device users.

Trends, Tools, or Tactics of Interest

Commercial generative AI services are being actively used by threat actors to streamline and scale cyberattacks, as evidenced in the FortiGate firewall campaign.
Predator spyware’s ability to hide iOS recording indicators signals a trend towards more sophisticated evasion techniques in mobile surveillance tools.
Anthropic has announced the launch of Claude Code Security, an AI-powered vulnerability scanning tool capable of analysing codebases and recommending patches, highlighting ongoing industry movement towards AI-driven security solutions.
Research indicates that popular password managers share a common underlying weakness, though specific technical details were not provided in the headline summary.

Cybersecurity Brief – 2026-02-20

Fri, 20 Feb 2026 00:00:00 +0000

Major Incidents and Breaches

The French Ministry of Economy reported unauthorized access to the national bank account registry (FICOBA), exposing 1.2 million bank accounts.
Blockchain-based lender Figure confirmed a data breach after threat actor ShinyHunters leaked over 2GB of data, compromising nearly 1 million user records.
German rail operator Deutsche Bahn experienced a large-scale DDoS attack that disrupted information and booking systems for several hours.
Abu Dhabi Finance Week inadvertently exposed VIP passport details due to unprotected cloud storage.
Intimate products company Tenga suffered a phishing attack, potentially exposing US customer data.
A Nigerian national was sentenced to eight years in prison for hacking tax preparation firms in Massachusetts and filing fraudulent tax returns worth over $8.1 million.

Newly Discovered Vulnerabilities

Microsoft patched CVE-2026-26119, a privilege escalation vulnerability in Windows Admin Center.
A critical vulnerability in Grandstream GXP1600 series VoIP phones allows unauthenticated remote attackers to gain root privileges and eavesdrop on communications.
The US Cybersecurity and Infrastructure Security Agency (CISA) ordered federal agencies to patch a maximum-severity, actively exploited Dell vulnerability within three days.
OpenClaw, following a supply chain attack via a malicious npm package (Cline v2.3.0), continues to face security and misconfiguration issues despite recent patches.
Ivanti zero-day vulnerabilities have seen a surge in exploitation, with attacks traced back to July 2025, including shell access, reconnaissance, and malware delivery.
Foxit PDF software and OpenSSL both reported new remote code execution vulnerabilities, with active exploitation noted in the wild.

Notable Threat Actor Activity

The CRESCENTHARVEST campaign is targeting supporters of Iran’s protests with remote access trojan (RAT) malware for information theft and espionage.
ShinyHunters leaked user data stolen from Figure, a blockchain lender.
A supply chain attack injected the OpenClaw backdoor into Cline npm package, downloaded over 4,000 times.
Threat actors are targeting Microsoft Entra accounts in technology, manufacturing, and financial sectors using combined device code phishing and vishing to abuse OAuth 2.0 Device Authorization Grant.
INTERPOL’s Operation Red Card 2.0 resulted in 651 arrests and the recovery of $4.3 million, targeting online scams, investment fraud, mobile money scams, and fake loan applications across 16 African countries.

Trends, Tools, and Tactics of Interest

AI-assisted social engineering attacks remain the top initial access vector, with reports of a 1200% surge in AI-driven fraud during December 2025. Threat actors are leveraging AI for bot deployment, phishing, and identity fraud.
The PromptSpy Android malware is the first known mobile malware to leverage generative AI (Google Gemini) at runtime for persistence and adaptation across devices.
The Massiv Android banking trojan, disguised as IPTV apps, is actively targeting users in southern Europe with device takeover and financial theft capabilities.
The Arkanix Stealer, written in C++ and Python, has been distributed as malware-as-a-service (MaaS) with a referral program, targeting a wide range of user data.
Infostealer dumps are increasingly linking stolen credentials to real-world identities, correlating usernames, cookies, and behavioural data across personal and enterprise accounts.
The Starkiller phishing kit, available as phishing-as-a-service (PhaaS), bypasses multi-factor authentication (MFA) by live-proxying legitimate login sites.
AI-generated passwords have been found to be highly predictable and less secure compared to traditional random password generation methods.
IoT security risks continue due to reused passwords, lack of network segmentation, and poor sanitisation processes, increasing the attack surface.
Google blocked over 1.75 million Play Store app submissions in 2025 and prevented more than 255,000 apps from obtaining excessive access to sensitive user data.

Regulatory or Policy Developments

Texas filed a lawsuit against TP-Link, alleging deceptive marketing of its routers as secure while allowing exploitation of firmware vulnerabilities by Chinese state-backed hackers.
CISA issued an emergency directive for federal agencies to patch an actively exploited Dell vulnerability within three days.
Three former Google engineers were indicted in the US for allegedly stealing trade secrets and transferring them to Iran.

Cybersecurity Brief – 2026-02-19

Thu, 19 Feb 2026 00:00:00 +0000

Major Incidents or Breaches

Figure Technology Solutions suffered a data breach impacting nearly one million accounts, exposing personal and contact information.
Betterment’s data breach is more severe than initially reported, with leaked data including sensitive personal and financial details.
A vast online database containing billions of records, including Social Security Numbers, was found exposed and accessible, posing significant identity theft risks.

Newly Discovered Vulnerabilities

Grandstream GXP1600 series VoIP phones are affected by a critical unauthenticated remote code execution vulnerability (CVE-2026-2329), allowing attackers root-level access and enabling call interception, toll fraud, and user impersonation.
Four widely used Microsoft Visual Studio Code extensions (collectively over 125 million installs) were found to contain multiple vulnerabilities, potentially enabling threat actors to compromise developer environments.
Multiple Honeywell CCTV products used in critical infrastructure are vulnerable to an authentication bypass flaw, allowing unauthorized access to video feeds and account hijacking.
Dell RecoverPoint for Virtual Machines is affected by a maximum severity zero-day vulnerability (CVE-2026-22769), exploited since mid-2024 by a China-linked threat group (UNC6201) for lateral movement, persistence, and malware deployment.
Foxit and Apryse PDF platforms contained 16 vulnerabilities that could be exploited for account takeover and data exfiltration via malicious documents or URLs.
CISA has added a vulnerability in TeamT5’s ThreatSonar Anti-Ransomware to its Known Exploited Vulnerabilities (KEV) catalog; the issue was patched in 2024 but is being actively exploited.

Notable Threat Actor Activity

The China-nexus threat actor UNC6201 has exploited Dell RecoverPoint for VMs zero-day since mid-2024.
Kenyan authorities reportedly used Cellebrite’s forensic extraction tool against a dissident’s mobile device while in custody.
Telegram underground channels rapidly weaponized SmarterMail vulnerabilities (e.g., CVE-2024-XXXX), sharing PoCs and stolen credentials shortly after public disclosure.
New Keenadu Android malware has been found preinstalled on thousands of devices and distributed via Google Play and other app stores.
Hackers are actively exploiting a vulnerability in TeamT5’s ThreatSonar Anti-Ransomware product.
AI platforms such as Grok and Microsoft Copilot are being abused as covert communication channels for malware command-and-control (C2) activity.

Trends, Tools, or Tactics of Interest

AI and quantum advancements are driving recommendations for substantially longer passwords (25+ characters) to withstand brute-force and future cryptanalytic attacks.
AI-powered chatbots are being weaponized for scams, including a fake “Gemini” chatbot used to pitch fraudulent “Google Coin” schemes.
Phishing campaigns are leveraging fake Google Forms sites to harvest Google login credentials from job seekers.
Anti-phishing heuristic rules in Microsoft Exchange Online mistakenly blocked legitimate emails and Teams messages, disrupting business communications.
Microsoft 365 Copilot bug has caused confidential emails to be summarized by the AI assistant, bypassing organizations’ data loss prevention policies.
A significant percentage (over 40%) of South Africans reported being scammed in 2025, highlighting the prevalence of scalable, low-friction scams.
Underground threat communities are accelerating the weaponization of disclosed vulnerabilities, as evidenced by rapid exploitation of SmarterMail flaws.
Malware campaigns are increasingly using steganography, such as embedding payloads in image files.

Regulatory or Policy Developments Affecting the Security Industry

CISA has issued warnings regarding active exploitation of vulnerabilities in Honeywell CCTV products and TeamT5 ThreatSonar Anti-Ransomware, urging immediate patching and mitigation.
CISA’s KEV catalog continues to expand with newly exploited vulnerabilities, reinforcing mandatory remediation timelines for federal and critical infrastructure entities.