Google goes it alone with a new cybercrime crew taxonomy

Google has created a new taxonomy to describe cybercrime outfits, seemingly abandoning a Microsoft-led effort to create consistent names. The Big G announced its new schema on Saturday in a post that notes its 2022 acquisition of Mandiant and its subsequent incorporation into a new team called the Google Threat Intelligence Group (CTIG). Now that two have become one, Google reckons they need consistent naming conventions to describe cybercrime crews. The result is a two-word schema in which the first word “is a unique and memorable term chosen to represent the specific actor.” If security folk have already applied a particular moniker Google will use it, otherwise it will randomly generate a word “to remove bias.” Google says the second word “categorizes threat clusters by motivation, attribution, or activity type based on which category we consider to be most important for defense and response strategies.” More on that later. Google has decided on the following names: CASTLE to describe crews from the People’s Republic of China ION for threats from Iran NEPTUNE for North Korean attackers RELIC for Russians COMET for cybercrims who aren't backed by a state Google’s post notes that other infosec industry players have developed their own schemas for describing threat actors and says the web giant is therefore “intentionally seeking to keep this system as simple as possible to streamline operations and facilitate mapping to other naming taxonomies.” That’s an odd position, given that in 2025 Microsoft and CrowdStrike tried to spark an industry-wide effort to apply consistent names to threat actors. As we noted at the time, the existence of multiple naming schemas means that researchers often refer to the same group by ten different names. Researchers use the names Seashell Blizzard, IRIDIUM, VOODOO BEAR, BE2, UAC-0113, Blue Echidna, PHANTOM, BlackEnergy Lite, and APT44 to refer to the same entity – Russia's Military Intelligence Unit 74455. With most orgs using multiple security tools and therefore receiving threat intelligence security info from many vendors, users must try to understand which crews they’re trying to defend against. At the time, sources told us Google and Mandiant were keen to adopt the Microsoft-led scheme. Google’s new announcement suggest the relationship either wasn’t consummated or didn’t last. Back to the issue of possible bias, as in 2024 China's National Computer Virus Emergency Response Center (CVERC) complained that western companies choose names like “Typhoon,” “Panda,” or “Dragon” to describe Chinese cybercrime groups. CVERC suggested names that reflect English language idioms, such as “Hurricane” or “Koala” are more appropriate. For what it’s worth, “Koala” is a word from the language spoken by the Darug people, the indigenous tribe who lived around Sydney, Australia, prior to British colonization. Koalas are utterly supine creatures that sleep 18 to 22 hours a day, and a mention of the marsupials may therefore not spur defenders to action, even if the creatures’ habits do perhaps describe the behavior of some sleeper malware. ®

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