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Blockchain Security

Fortify Your Crypto Infrastructure With Blockchain-Grade DNS Filtering

DNS filtering built for cryptocurrency exchanges, wallet providers, and DeFi platforms. Block cryptojacking domains, prevent unsafe content access targeting private keys, secure smart contract interactions, and meet FinCEN compliance requirements.

$3.8B
Crypto Stolen in 2025
90M+
Domains Monitored
58
content risk Categories
<1ms
Resolution Time

Why Crypto Companies Need Specialized DNS Filtering

The cryptocurrency industry operates in a uniquely hostile content risk environment. Unlike traditional finance where stolen funds can often be frozen or reversed, cryptocurrency theft is typically irreversible. A single compromised DNS resolution redirecting users to a fake exchange or wallet interface can drain millions in digital assets within minutes.

Attackers have increasingly sophisticated methods: DNS hijacking of exchange domains, BGP route manipulation, homograph attacks using international domain characters, and cryptojacking scripts embedded in third-party resources. Every DNS query in your infrastructure is a potential attack vector.

  • Block cryptojacking domains that hijack computing resources for unauthorized mining
  • Prevent DNS hijacking attacks targeting exchange and wallet domains
  • Block restricted sites that clone exchange interfaces to steal credentials and keys
  • Meet FinCEN MSB registration and BSA/AML compliance requirements
  • Protect smart contract deployment infrastructure from DNS manipulation

Crypto-Native content classification

Our content classification team maintains the industry's most comprehensive database of malicious cryptocurrency domains. We track restricted sites impersonating every major exchange, wallet provider, and DeFi protocol. We catalog domains hosting cryptojacking scripts, fake ICO/IDO landing pages, rug pull project websites, and malicious airdrop claim pages.

The 90-million-domain database includes dedicated cryptocurrency content risk categories: known cryptojacking mining pool domains, malicious Web3 wallet drainer sites, fraudulent token swap interfaces, fake bridge protocols designed to steal cross-chain transfers, and domains associated with North Korean Lazarus Group operations targeting cryptocurrency companies.

We monitor domain registrations in real-time for patterns matching crypto exchange names, popular token names, and DeFi protocol brands, blocking lookalike domains before restricted content campaigns can launch. Our coverage extends to internationalized domain names used in homograph attacks that make fake domains visually indistinguishable from legitimate ones.

Cybersecurity Challenges in Cryptocurrency

Where irreversible transactions meet the world's most motivated attackers

Cryptojacking at Scale

Cryptojacking scripts embedded in compromised websites and third-party resources hijack employee and user computing power for unauthorized mining. DNS filtering blocks connections to known mining pool domains and cryptojacking script hosting sites, preventing resource theft across your entire infrastructure.

Private Key Theft

Sophisticated unsafe content access clone exchange and wallet interfaces to harvest private keys and seed phrases. These attacks use near-perfect domain spoofing with homograph characters and newly registered lookalike domains that pass casual visual inspection. DNS filtering blocks these domains before any employee or user can interact with them.

DNS Hijacking Attacks

Attackers who compromise DNS infrastructure can redirect all traffic destined for your exchange to a malicious clone. The MyEtherWallet DNS hijack demonstrated this content risk, stealing $17 million in minutes. DNS filtering with DNSSEC validation prevents these devastating redirect attacks.

Smart Contract Manipulation

DNS attacks targeting the infrastructure used to deploy and interact with smart contracts can inject malicious code or redirect contract calls. Protecting the DNS resolution chain for RPC endpoints, block explorers, and deployment tools is critical for maintaining smart contract integrity.

Regulatory Compliance

FinCEN requires registered MSBs to implement effective anti-money laundering controls including cybersecurity measures. State money transmitter licenses and emerging crypto-specific regulations add additional compliance layers. DNS filtering provides documented security controls that satisfy multiple regulatory frameworks.

Nation-State content risks

State-sponsored groups like North Korea's Lazarus Group have stolen billions in cryptocurrency through sophisticated campaigns targeting exchanges and DeFi protocols. These APT groups use custom DNS infrastructure, novel social engineering, and zero-day exploits specifically developed for crypto targets.

Cryptocurrency DNS Filtering Capabilities

Security built for the speed and stakes of digital asset operations

Cryptojacking Domain Blocking

Comprehensive blocking of known mining pool domains, cryptojacking script CDNs, and Coinhive-style browser mining services. Prevent unauthorized use of your infrastructure's computing resources for cryptocurrency mining.

Homograph Attack Detection

Advanced detection of internationalized domain names using Cyrillic, Greek, and other character sets to impersonate legitimate crypto domains. Block visually identical fake domains that human eyes cannot distinguish from the real site.

Hot Wallet Infrastructure Protection

Strict DNS allowlisting for servers managing hot wallets. Only approved blockchain node endpoints, signing service domains, and monitoring platforms are accessible, preventing any unauthorized outbound communication from wallet infrastructure.

DNSSEC Validation

Full DNSSEC validation ensures DNS responses for your exchange domain have not been tampered with. Protect against BGP hijacking and DNS cache poisoning attacks that could redirect user traffic to malicious clones of your platform.

FinCEN Compliance Reports

Automated compliance evidence generation for BSA/AML programs, FinCEN MSB requirements, and state money transmitter regulations. Demonstrate cybersecurity due diligence with exportable audit documentation.

Real-Time content risk Alerts

Instant notifications when DNS queries match known crypto-targeting APT infrastructure. Integrate with your security operations for immediate response to Lazarus Group indicators, exchange-targeting restricted content, and emerging crypto content risk campaigns.

Cryptocurrency DNS Filtering Use Cases

Protecting digital assets across the entire cryptocurrency ecosystem

1

Exchange Infrastructure Hardening

A mid-tier cryptocurrency exchange deployed DNS filtering with strict allowlists on their matching engine, wallet management, and withdrawal processing servers. The system blocked 340 unauthorized DNS queries in the first week, including attempted connections to known Lazarus Group command infrastructure from a compromised development workstation, preventing a potentially devastating hot wallet drain.

2

DeFi Protocol Team Security

A DeFi protocol's development team implemented DNS filtering across all engineer workstations and CI/CD infrastructure. The system prevented a supply chain attack where a compromised npm package attempted to resolve malicious domains that would have injected a wallet-draining backdoor into the protocol's frontend during the next deployment cycle.

3

Cryptojacking Prevention at Scale

A crypto custody provider discovered through DNS filtering that compromised third-party analytics scripts were connecting to mining pools from employee browsers. The DNS filter had been silently blocking these connections for weeks, preventing what would have been a major resource drain and potential indicator of deeper compromise within the custody infrastructure.

4

Regulatory Examination Readiness

A state-licensed cryptocurrency exchange used DNS filtering compliance reports during their money transmitter license renewal examination. The documented evidence of proactive cybersecurity controls, continuous monitoring, and content filtering metrics satisfied examiners and contributed to a smooth license renewal without additional security remediation requirements.

Protect Your Digital Assets With Blockchain-Grade DNS Filtering

Deploy the DNS security platform trusted by leading cryptocurrency exchanges and DeFi protocols

Start Securing Your Crypto Infrastructure