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APT Groups. From Our Analysts.

Profiles and analysis of APT groups and state-linked threat actors: who they target, which tools and techniques they use, and how to defend against them.

All471 APT Groups94 Dark Web28 Digital Risk Protection122 Fraud14 Ransomware48 Sector Analysis34 VIP Security7
Illustration of Mustang Panda APT symbolizing China-linked cyber espionage threat in 2025APT Groups Mustang Panda: Persistent Threat of a China aligned Espionage Group Mustang Panda (Earth Preta) is one of the most persistent China-linked APT groups, adapting tools like PlugX, ToneShell, and Yokai to target governments, NGOs, and critical… Sep 23, 20255 Min Illustration of DragonForce ransomware hacker with red dragon mask and dark hoodieAPT Groups DragonForce Ransomware: From Hacktivism to High-Street Extortion DragonForce, once a hacktivist collective, has transformed into a financially driven ransomware cartel. From high-profile UK retailers to global enterprises, the group leverages affiliates, white-label branding,… Sep 18, 20259 Min Illustration of Cozy Bear (APT29) cyber espionage group symbolized as a bear in a hoodie with glowing red eyes.APT Groups APT29 (Cozy Bear): Russia’s Stealth Espionage Powerhouse APT29, also known as Cozy Bear, is one of Russia’s most persistent cyber espionage groups. From SolarWinds to Microsoft, their operations highlight the sophistication of identity-based… Sep 17, 20259 Min rokrat malware technical analysisAPT Groups [Research Summary]: RokRat RokRAT technical analysis: how a .lnk file disguised as a PDF runs PowerShell and drops the RokRAT trojan, with MITRE ATT&CK mapping and defences. Jun 26, 20244 Min tracking blockchain and threat actorsAPT Groups OSINT Methodology for Cryptocurrency Learn the OSINT methodology for cryptocurrency: how blockchain analysis works, how blocks form in Bitcoin and Ethereum, and how to use block explorers. Jan 18, 20244 Min sidetwist backdoor variant explained by brandefemseAPT Groups [Research Summary]: APT34’s New Backdoor – SideTwist Variant APT34 (OilRig) has a new SideTwist variant. See how the 2023 samples differ from the 2021 backdoor, how phishing delivers them and how to defend. Dec 22, 20234 Min Lego figures dressed as bandits with red bandanas and accessories, representing a playful, themed sc.APT Groups Advanced Persistent Threats (APTs): Identifying and Combating Stealth Attacks Learn what an APT (advanced persistent threat) is, which warning signs to look for in traffic, data access, software and logs, and how to defend a… Dec 08, 20237 Min perspective of brandefense for apt groups, APTsAPT Groups Brandefense’s Perspective on Understanding APT: Decoding the Tactics of APT Groups Learn how APT groups break in, stay hidden and steal data, how they differ from common cyber attacks, and which steps help defend against them. Nov 23, 20236 Min blended cyber attacksAPT Groups Blended Attacks: When Cybercriminals Use Multiple Techniques Blended attacks combine phishing, malware, software flaws and remote control in one intrusion. See how they work and how to reduce the risk. Nov 21, 20236 Min Toy doll with pins and red eyes on black background, symbolic of brand protection.APT Groups [Research Summary]: SandWorm APT Group Intelligence Report Sandworm Team, also known as Unit 74455, is a Russian cyber espionage group that has been operating since 2009. They mainly target Ukrainian organizations. Oct 19, 20224 Min european focused threat actors who are still attackAPT Groups European Focused Threat Actors – Who Actively Continue Their Strategies The main motivation of individual threat actors who carry out European-focused attacks is to earn financial gain. Oct 03, 20224 Min apt groups threat actorsAPT Groups European Focused Threat Actors – APT Groups It has been observed that the main motivation of individual threat actors who carry out European-focused attacks is to earn financial gain. Sep 29, 20225 Min
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FAQ

About The Blog.

Last updated June 9, 2026

  • Articles on ransomware, APT groups, the dark web, digital risk protection, fraud, sector analysis and VIP security, written for security teams.

  • New articles are added several times a month. The newest come first, and every article shows its publish date.

  • Use the topic chips above the list to open one topic, or type a word in the search box. Each topic has its own page.

  • Articles draw on public sources such as CISA advisories, MITRE ATT&CK and ENISA reports. Sources are listed at the end of an article when it cites them.

  • The site feed at brandefense.io/feed/ lists new posts. The email sign-up box is on the All Resources and Reports pages.

  • Brandefense is an AI-driven threat intelligence company. Its platform covers cyber threat intelligence, digital risk protection and external attack surface management. You can request a demo on your own domain from the Request A Demo page.

  • The blog page shows 470 articles. You can open all of them or pick one topic, such as APT Groups, Dark Web, Ransomware or Fraud. Each article shows its publish date.

  • The blog describes its articles as explained by the analysts who track threats. They cover threat actors, dark web activity, ransomware and digital risk. The newest articles appear first.

  • Yes. APT Groups is one of the topic chips above the list, and it opens only the articles on that topic. The Knowledge Hub also holds profiles of threat groups.

  • The surface web is the part of the internet that search engines list. The deep web is content that search engines do not list, such as pages behind a login. The dark web needs special software to reach. The blog has an article that explains the three layers in plain words.