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Cybersecurity Brief – 2026-02-05

Major Incidents or Breaches

  • A hacktivist group claims to have breached the Mexican government, allegedly leaking 2.3 terabytes of data affecting 36 million citizens. The government disputes the sensitivity of the leaked data.
  • Notepad++ update infrastructure was compromised by suspected Chinese state-backed hackers, resulting in the distribution of a backdoored version of the application.
  • Ongoing web traffic hijacking campaigns are targeting NGINX servers and management panels such as Baota (BT), redirecting user traffic through attacker-controlled infrastructure.
  • The DEAD#VAX malware campaign is deploying AsyncRAT via IPFS-hosted VHD phishing files, using advanced evasion techniques to bypass traditional security controls.
  • Iranian threat actors continue credential theft operations targeting expatriates, Syrians, and Israelis using spear-phishing and social engineering.
  • Attackers are leveraging Windows .scr screensaver files to deliver malware and remote management tools, exploiting the fact that these executables often evade standard controls.

Newly Discovered Vulnerabilities

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Cybersecurity Brief – 2026-02-04

Major Incidents or Breaches

  • Notepad++ Supply Chain Attack: Kaspersky GReAT identified previously undocumented infection chains in the Notepad++ supply chain attack, with new indicators of compromise (IoCs) and use of DLL sideloading.
  • Panera Bread Data Leak: ShinyHunters leaked 5.1 million Panera Bread account records, claiming theft of 14 million records from the company’s systems.
  • AT&T Breach Data Resurfacing: Previously leaked AT&T customer data has resurfaced, now merged and enriched with other datasets, increasing risks for affected customers.
  • AI Plush Toy Data Exposure: Approximately 50,000 chat transcripts between children and Bondu’s AI dinosaur plush toy were exposed and accessible to anyone with a Google account.

Newly Discovered Vulnerabilities

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Cybersecurity Brief – 2026-02-03

Major Incidents or Breaches

  • Notepad++ Supply Chain Attack:

    • Chinese state-sponsored group “Lotus Blossom” compromised the Notepad++ hosting provider for approximately six months.
    • Attackers hijacked the official update mechanism, redirecting select users to malicious servers and distributing trojanised updates.
    • The campaign was highly targeted and attributed to Chinese state interests with medium confidence.
  • NationStates Data Breach:

    • The multiplayer browser-based game NationStates confirmed a data breach and temporarily shut down its website to investigate the incident.
  • Panera Bread Data Breach:

    • The data breach at Panera Bread impacted 5.1 million accounts, as confirmed by Have I Been Pwned.
  • MongoDB Database Compromise:

    • Over 1,400 out of 3,100 unprotected MongoDB instances were compromised, with most attributed to a single threat actor.
  • Polish Energy Sector ICS Attack:

    • Attackers exploited default credentials to gain access to industrial control systems (ICS) at Polish energy facilities, resulting in destructive impacts.
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Cybersecurity Brief – 2026-02-02

Major Incidents or Breaches

  • eScan Antivirus update servers were compromised by unknown attackers, resulting in the delivery of multi-stage malware through the official update channel. The attack leveraged the trusted update infrastructure of MicroWorld Technologies, impacting users who downloaded updates during the compromise period.

  • The Open VSX Registry, a popular extension registry for Visual Studio Code, was targeted in a supply chain attack. Threat actors compromised a legitimate developer’s account to distribute malicious extensions containing the GlassWorm malware to end users.

  • Exposed MongoDB instances continue to be targeted in automated data extortion attacks. Threat actors are accessing unsecured databases, exfiltrating data, and demanding low-value ransoms from database owners to restore access.

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Cybersecurity Brief – 2026-02-01

Major Incidents or Breaches

  • Hackers compromised a MicroWorld Technologies update server, delivering a malicious file to eScan Antivirus customers via a supply chain attack.
  • A researcher disclosed that private Instagram profiles were leaking photo links to unauthenticated visitors. The issue was subsequently fixed, but Meta closed the report as not applicable.

Newly Discovered Vulnerabilities

  • Evidence indicated a flaw in Instagram’s handling of private profile photos, allowing unauthorized access to photo links. This has since been remediated.

Notable Threat Actor Activity

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Cybersecurity Brief – 2026-01-31

Major Incidents or Breaches

  • CERT Polska reported coordinated cyber attacks on over 30 wind and solar farms, as well as a private manufacturing company, in Poland. Related reporting attributes a Russia-linked threat actor (Sandworm/Electrum) as responsible for these intrusions, which resulted in bricked ICS devices at 30 sites affecting communication and control systems in the Polish power grid.
  • ShinyHunters ransomware group claimed breaches of Match Group dating platforms (Match, Hinge, OkCupid) and Panera Bread, allegedly stealing millions of user records.
  • Illegal cryptocurrency flows reached $158 billion in 2025, marking a record high after several years of decline.
  • Researchers identified malicious Google Chrome extensions capable of hijacking affiliate links, stealing data, and collecting OpenAI ChatGPT authentication tokens.
  • Android users were targeted with a remote access trojan (RAT) delivered via malicious applications hosted on Hugging Face repositories.
  • Over 175,000 exposed Ollama AI model hosts were identified, with 23,000 persistently active, posing risks of LLM abuse.

Newly Discovered Vulnerabilities

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Cybersecurity Brief – 2026-01-30

Major Incidents or Breaches

  • Match Group, the parent company of Tinder, OkCupid, Hinge, and Match.com, confirmed a cybersecurity incident resulting in the compromise of user data across multiple platforms.
  • Marquis Software Solutions reported that a ransomware attack in August 2025 affecting dozens of U.S. banks and credit unions was due to a breach of SonicWall cloud backups.
  • An AI chat toy company, Bondu, exposed over 50,000 logs of conversations between children and its AI-enabled toys due to an unsecured web console.
  • The French national unemployment agency was fined €5 million for a breach that resulted in the theft of job seekers’ personal information.
  • eScan antivirus suffered a supply chain attack, with malicious updates detected and distributed through its update mechanism.
  • Google, in collaboration with industry partners, disrupted the IPIDEA residential proxy network, which had been leveraged by threat actors via malware-infected devices.

Newly Discovered Vulnerabilities

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Cybersecurity Brief – 2026-01-29

Major Incidents or Breaches

  • The Polish energy grid suffered a coordinated cyberattack in December 2025, impacting around 30 distributed energy resource sites, including combined heat and power facilities and wind farms. The incident has been attributed to the Russian state-sponsored group ELECTRUM.
  • eScan antivirus vendor MicroWorld Technologies confirmed its update server was breached and used to distribute a malicious update.
  • The FBI seized the RAMP cybercrime forum, a major platform for ransomware gangs and malware advertisements.
  • Google, in collaboration with partners, disrupted IPIDEA, one of the world’s largest residential proxy networks.
  • A malicious campaign, dubbed “Bizarre Bazaar,” is actively targeting exposed Large Language Model (LLM) service endpoints to commercialise unauthorised access to AI infrastructure.
  • Researchers found 16 malicious Chrome extensions capable of hijacking ChatGPT sessions and exfiltrating user data.
  • Two malicious Python packages masquerading as spellcheckers were discovered on PyPI, delivering remote access trojans.

Newly Discovered Vulnerabilities

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Cybersecurity Brief – 2026-01-28

Major Incidents or Breaches

  • Nike is investigating a potential data breach after the World Leaks ransomware/extortion group published 1.4 TB of allegedly stolen corporate files, including 188,347 highly sensitive documents.
  • SoundCloud has suffered a data breach impacting 29.8 million accounts, with hackers stealing personal and contact information.
  • Over 100 organizations have been targeted in a phishing campaign attributed to ShinyHunters, with domains set up to impersonate brands such as Atlassian, Canva, Epic Games, HubSpot, Moderna, ZoomInfo, and WeWork.
  • Over 6,000 SmarterMail servers are exposed online and likely vulnerable to automated hijacking attacks exploiting a critical authentication bypass vulnerability.
  • Multiple threat actors, including state-sponsored and financially motivated groups, continue to exploit the CVE-2025-8088 WinRAR path traversal vulnerability for initial access and malware delivery.
  • Chrome and Edge browser extensions marketed as ChatGPT enhancement tools have been found stealing ChatGPT session data, granting threat actors access to user information.

Newly Discovered Vulnerabilities

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Cybersecurity Brief – 2026-01-27

Major Incidents or Breaches

  • Crunchbase has confirmed a data breach following hacking claims. The incident is linked to the ShinyHunters group, which also targeted SoundCloud and Betterment.
  • A failed cyberattack on the Polish power grid has been attributed to the Russian APT group Sandworm. The attack involved the deployment of data-wiping malware but did not result in significant disruption.
  • Nearly 800,000 Telnet servers have been found exposed to remote attacks due to a critical authentication bypass vulnerability in GNU InetUtils, with ongoing exploitation attempts observed.
  • Cloudflare experienced a 25-minute BGP route leak affecting IPv6 traffic due to internal misconfiguration, causing congestion, packet loss, and approximately 12 Gbps of traffic disruption.

Newly Discovered Vulnerabilities

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