Real-Time Security Monitoring for Tokens and Smart Contracts
Block reentrancy attacks, approval race conditions, and integer overflows before they drain token reserves or compromise user funds with Guardrail’s real-time, continuous security monitoring for tokens and smart contracts.
Trusted by leading Web3 projects
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Stop smart contract exploits instantly
block reentrancy, integer overflow, and approval exploits before reserves are compromised.
Block front-running and MEV attacks
detect transaction ordering abuse and sandwich attacks that harm users.
Prevent unauthorized token operations
monitor admin keys and role changes to stop unauthorized minting or burning.
Audits Are Just the Beginning
Over 90% of hacks happen in audited protocols after deployment.
Static audits catch code bugs pre-launch, but can't defend against the live threats that emerge in production. Guardrail provides the continuous monitoring that protects your protocol 24/7 where real attacks happen.
Why monitoring?
Since 2020, token-based projects have lost over $2.5 billion to contract vulnerabilities. Reentrancy exploits, approval race conditions, and arithmetic bugs remain some of the most damaging threats. Vulnerabilities can be exploited within a single transaction, leaving no time for manual response.
Reentrancy attacks
drain reserves before state updates occur.
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Approval race conditions
and MEV front-running steal tokens mid-transaction.
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Integer overflows and underflows
mint unlimited tokens or manipulate balances.
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Access control exploits
allow unauthorized minting, burning, or parameter changes.
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Real-time threat monitoring is now a baseline requirement for DApps and Web3 applications
Threat
Why it matters
Guardrail real-time monitoring
Reentrancy & Smart Contract Exploits
Vulnerable contract logic allows attackers to recursively drain token reserves through repeated function calls before state updates.
Reentrancy detection & recursive pattern monitoring
Approval Race Conditions & Front-Running
Attackers exploit approval mechanisms and MEV opportunities to steal tokens during legitimate user transactions and swaps.
Mempool analysis & MEV front-run prevention
Integer Overflow & Underflow Attacks
Arithmetic flaws enable unlimited token minting or balance manipulation.
Arithmetic validation & supply cap enforcement
Phishing & Social Engineering Attacks
Fake DApp UIs and spoofed domains steal wallet credentials or assets.
Wallet behavior analysis & rapid approval detection
Access Control & Permission Exploits
Compromised admin functions and inadequate role management allow unauthorized minting, burning, or parameter changes.
Admin action tracking & permission change alerts
Flash Loan & Oracle Manipulation
Price feed attacks and flash loan exploits manipulate token values to extract value from DeFi integrations and trading pairs.
Flash-loan detection & multi-feed oracle verification
Cross-Chain Bridge & Multi-Sig Risks
Exploits in bridges or compromised multisigs enable unauthorized transfers and cross-chain asset theft.
Cross-chain reconciliation & multisig monitoring
Compliance & Regulatory Violations
AML failures and sanctions screening gaps expose projects to regulatory action and financial penalties.
Sanctions screening & AML pattern detection
Guards provide complete security coverage of every onchain
Pre-built Guards
Instantly set up ‘Guards’ for common attack vectors from our extensive blueprint library of 50+ ‘Guards’
Custom Guards
Custom monitoring for your unique protocol risks
Frequently asked questions
Need more information?
What is real-time security monitoring for tokens?
Continuous analysis of smart contract functions, approvals, and transaction flows to detect vulnerabilities and exploits before they impact token security or user funds.
How do approval exploits affect token holders?
Attackers exploit unlimited approvals or race conditions to transfer tokens without user consent, often during swaps or liquidity interactions.
Can Guardrail detect unauthorized token minting or burning?
Yes. Guardrail monitors admin actions, supply changes, and contract events in real-time, flagging anomalies that indicate unauthorized operations.
How does Guardrail help prevent MEV and front-running?
It detects suspicious ordering, gas spikes, and sandwich patterns that exploit user transactions, allowing teams to intervene or adjust fees.
Does Guardrail support multi-chain token monitoring?
Yes. Guardrail monitors ERC-20s and other standards across EVM and non-EVM chains, including cross-chain bridges and multi-sig operations.
Get Guardrail to secure your assets onchain today
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