International Investigation Cases: How Major Carders Are Caught

[Good Carder]

This article is a detailed look at the forensic and intelligence aspects of the fight against carding. We'll examine real-life arrests from 2025–2026, darknet penetration methods, cryptanalysis, and the fatal mistakes that landed carders behind bars.

Introduction. The Asymmetry of Illiteracy​

Carders are convinced that their main enemy is bank anti-fraud systems. However, their real adversary is professional digital forensics: infiltrating darknet forums, tracking cryptocurrency transaction chains, and coordinating international orders. The scale is impressive: in 2025, addresses linked to illegal activity received $154 billion (according to Chainalysis, this is less than 1% of the total transaction volume). However, crypto exchange AML systems continue to freeze even legitimate users. Interpol and Europol are coordinating the arrests of hundreds of carders, seizing millions of dollars. But the main gap lies in digital hygiene. Technical protection is being undermined by simple behavioral errors that are repeated year after year.

Part 1. The Flint24 carding gang (sentenced in 2026)​

1.1. Structure and scale of the carding network​

In March 2026, the Moscow Military Court sentenced the large carding group Flint24. Twenty-six defendants received prison sentences ranging from 5 to 15 years and fines of up to 4.6 million rubles. The group's founder was identified as Alexey Stroganov, a businessman from the Kaluga region, known in cybercrime as Flint24.

The network operated from 2014 to 2020. It included separate units for stealing card data, selling it in its own online stores, and "eliminating competitors" using malware. Data on 159,210 bank cards was found on the devices of group members. The victims included citizens of Russia, the CIS, the EU, and the US.

1.2. Operational Security Methods and Failures​

In 2006, Moscow's Lyublinsky Court sentenced Stroganov to six years in prison for issuing and selling over 5,000 counterfeit Visa, Mastercard, and American Express cards. After serving his sentence, he declared himself a cybersecurity expert: films were made about him and books were published. However, in 2024, the US Secret Service placed him on the international wanted list for mass identity theft. Ironically, Stroganov reused his long-standing Flint24 nickname and did not conceal his real business identity. The transition from carding to public activity proved fatal.

Part 2. Operation Red Card 2.0: Interpol's Global Breakthrough​

The large-scale Operation Red Card 2.0, coordinated by INTERPOL from December 2025 to January 2026, affected 16 African countries and resulted in the arrest of 651 suspects. More than 4.3 million items were confiscated, over 2,300 electronic devices were seized, and over 1,400 malicious websites and servers were shut down.

In Côte d'Ivoire, police dismantled a network specializing in fraudulent mobile credit apps. In Nigeria, members of a group that infiltrated the internal systems of a major telecom operator using stolen credentials were arrested. This demonstrates that the operation combines classic OSINT with modern digital intelligence.

Part 3: How Police Methods Work​

3.1. Infiltrating Darknet Forums and Honeypots​

Modern units utilize embedded digital agents, honeypots, and digital fingerprint analysis. They create convincing hacker personas with fake histories and backgrounds, who interact with forum members to gain trust and access to restricted sections. Agents purchase illegal goods, recording transactions, and establish relationships with administrators and sellers to build criminal hierarchies.

One of the most powerful tactics is honeypots. The most high-profile example is Operation Bayonet (2017), during which law enforcement secretly took control of the darknet marketplace Hansa, monitored user behavior for several weeks, and then simultaneously shut down AlphaBay.

Agents also use circumstantial evidence: IP addresses (a single mistake with a disabled VPN is enough), device fingerprints (MAC addresses and fingerprints), metadata from files and images, crypto wallets (analysis of transaction chains), behavioral markers (typing style, time of publication).

3.2. Analysis of cryptocurrency transactions (Chainalysis)​

Blockchain analytics providers like Chainalysis, Elliptic, and TRM Labs are responsible for verifying transactions on major platforms. They assign each address a risk score — a numerical value indicating the likelihood of connection to illegal activity. Blocking triggers include transactions with sanctioned addresses (OFAC), operations with darknet markets or ransomware, and interactions with transaction obfuscation services, from cross-chain bridges to mixers.

CoinJoin transactions are easily identified on-chain. Even if a user used a clean mixer, their coins are mixed with potentially "dirty" ones from unknown participants, and AML systems automatically increase the risk score.

3.3. International Coordination: Europol and Extradition​

Carding is a cross-border activity, making extradition the primary mechanism. The European agency Europol plays a key role in coordinating police forces, providing analytical support — from mapping locations where carders offer their services to forensic analysis of digital evidence and dismantling infrastructure.

Part 4. Typical mistakes leading to deanonymization​

Even though many carders use VPNs and Tor, they are hampered by simple operational errors:

1. Linking anonymous activity to a personal email address or phone number. Even if you accessed the social network through Tor, your phone number is already linked to your real identity.
2. Reusing nicknames. Using the same nickname on a forum, in a game account, and in chats creates a connection between all activities. OSINT searches by nickname (using Sherlock) allow you to compare forum posts, social media profiles, and database leaks. Using age or year in a nickname is also dangerous.
3. Mixing clean and dirty environments. Even if you visited a website with a VPN enabled, a prior visit without it will record your real IP address. Many platforms store a history of IP addresses from previous visits, and this is sufficient for linking.
4. Using a real photo as an avatar or publishing photos indexed by search engines. Reverse image search technologies allow you to find social media and personal accounts based on the original image.
5. Using insufficiently isolated devices. Physical devices without a clean OS or anti-detection software leave unique browser fingerprints that can be linked to carding activity.

Part 5. Lessons for carders (and others)​

Direct conclusions can be drawn from the described cases:

• Maintain separate operational hygiene for legal and research activities. Use isolated devices or virtual machines without personal data.
• Use clean crypto wallets without KYC and don't mix transactions. If you're investigating criminal networks, use separate addresses not linked to your legitimate exchange accounts.
• I constantly review my digital footprint — check for nicknames, old emails, and mentions in leaks.
• For defenders and blue teams: train staff to recognize signs of targeted infiltration; implement behavioral metrics (e.g., suspiciously ideal behavior patterns on forums); and use custom honeypots to identify attackers.
• Invest in blockchain analytics and share data within international structures.

Conclusion: Anonymity is a chain of habits​

The main truth behind all high-profile operations (Flint24, Red Card 2.0, Operation Bayonet): carders are caught not because of software leaks, but because of digital hygiene violations. Even if you use the Tor→VPN→mixer combination, but repeat the "Flint24" handle on social media, you leave an anchor for reverse OSINT.