Who are the top 10 hacker groups in the world (part 2)?

4th June 2025

Each with their own unique methods and designs, find out which cyber criminal groups should be on your radar.

We’re back! If you missed part one, take a look HERE, but we’re going over the most renowned and dangerous hacking groups globally. Read on to get an idea of their methods so you can better protect yourself.

MuddyWater: like OilRig in part one, this group are also based in the Middle East. Their emphasis is on espionage, infiltrating NATO nations and government agencies using spear-phishing, backdoors and credential theft.

Brain Cipher: another Ransomware-as-a-Service (RaaS) provider, Brain Cipher encrypts data and demands huge ransoms. Similarly to RansomHub, Brain Cipher are a serious threat to your cyber security.

Boolka: by focusing on exploits in web applications, Boolka has impacted thousands of businesses globally. They use modular hardware to find weaknesses and are known to be stealthy, persistently gaining access to systems without detection.

Ajina: mostly based in Central Asia but expanding globally, Ajina uses banking trojans and overlay attacks to breach businesses’ systems. Over 1,400 unique malware samples have been identified as coming from Ajina: that is a lot to defend against!

Team TNT: last but not least, we have Team TNT, know for cryptojacking (where they illegally mine cryptocurrency using victims’ computers) and brute force attacks (attacks that overwhelm a system with size and persistence. They are also known to target cloud environments.

There you have it, over the two blogs the top 10 cyber-criminal groups to be aware of. Remember, if you have a passion and skill for hacking, you don’t have to join one of these groups to use them: instead, you can use those skills to try and prevent these attacks from happening to people who don’t deserve it.

If you have any more questions about these hacker groups, contact Interfuture Security today.