It’s not unusual to hear crypto referred to as “The Wild West.” That’s because it kind of is. A lack of regulation is somewhat the point of cryptocurrency, but this leaves room for vulnerabilities. Enter cryptocurrency security companies. Crypto security companies provide software tools to detect hacks, trade funds safely, and audit existing code to prevent vulnerabilities. However, there are smart contract audit services that can be conducted separately.
If you’re a biz working with blockchains, you’re going to want to ensure the code is solid, and you may also want enterprise-grade software to store your crypto. Below we take a look at a few crypto security companies and explore what roles they play in keeping crypto funds safe.
Top Blockchain Security Companies 2026
- HyperNative: Best Vulnerability Alert Service
- Fireblocks: Best Custody Solution
- Chainalysis: Best Blockchain Analytics
- Consensys Diligence: Best Smart Contract Auditing Service
- CertiK: Best Full Security Suite
- Harpie: Best Free Service
| HyperNative | Custom alerts for suspicious activity or contracts and protocols suffering exploits | Contact for pricing | Yes |
|---|---|---|---|
| Fireblocks | Secure custody for digital assets24/7 transaction settlement; Support for over 400 cryptocurrencies | Contact for pricing | No |
| Chainalysis | Trace funds across blockchains and protocols; Stay safe from interacting with compromised or illicit addresses; 24/7 support and a customer success rep assigned to every account | Contact for pricing | No |
| Consensys Diligence | Smart Contract Audits; Automated Security Analysis; Smart Contract Testing; Automatic Property Checking; Enterprise Security Counseling; Threat Modeling; Incident Response Planning | Contact for pricing | No |
| CertiK | Smart Contract Audits; On-Chain Monitoring; KYC Services; Penetration Testing; Bug Bounties; Wallet Tracing and Visualization; 24/7 Incident Response | Contact for pricing | No |
| Harpie | Protects against frontend hacks, phishing attacks, private key theft, accidental asset transfer; Free database of suspicious wallet addresses; RPC endpoint for extensive asset protection Wallet audit service and transaction background check; Transaction Firewall; Harpie Vault for recovering stolen assets; Fully non-custodial approach to user assets; Audited contracts | Free | Yes |
1. HyperNative: Best Vulnerability Alert Service
Pros
- Customizable alerts for all aspects of blockchain security
- Application programming interface (API) support that allows companies to program
- Custom solutions on top of HyperNative
Cons
- Relatively new product that just launched in 2023
- Have to contact them to find out free trial length and pricing terms
Key Features
HyperNative is a monitoring platform for smart contracts, protocols, and DAOs that sends you alerts whenever anything suspicious is going on. Examples of suspicious activity include large withdrawals from exchanges, suspicious DAO proposals, and program hacks that steal client funds.
- Provides analytics tools for monitoring wallets, contracts, protocols, DAOs, and more
- Features custom alerts for a range of categories, including financial, technical, governance, community, and suspicious activity
- Custom integrations can be programmed through an API and exported to Slack, Email, or Telegram
- Real-time notifications for any suspicious activity
What Sets It Apart
HyperNative is a one-stop, end-to-end monitoring and alert service. It integrates with a wide range of protocols, wallets, and smart contracts so you can monitor any potential vulnerabilities.
2. Fireblocks: Best Custody Solution
Pros
- Advanced security features like multi-party computation (MPC) wallets that increase resistance to hacks
- Support for over 400 tokens, including those following the ERC-20 protocol used on the Ethereum network
- Settle transfers 24/7 without leaving the platform
Cons
- Access is restricted to select clients and large businesses — contact Fireblocks to learn if your organization is a good fit for their services
- No free trial
Key Features
Fireblocks removes the complexity of working with digital assets by providing custody, transfer, and analytics services. The platform allows individual traders and institutions to withdraw, deposit, and securely store funds.
- Allows clients to connect any major trading desk, lender, or counterparty to the software
- Supports transfers for over 400 supported tokens with instant, 24/7 settlement
- Single interface allows you to view digital assets across vaults and exchanges.
- Custody solution features industry-grade security that includes multi-party computation (MPC) wallet standards which rely on several distributed wallet keys in order to access funds — making hacks and exploits much less likely.
What Sets It Apart
Fireblocks is a powerful enterprise custody and transfer solution. Its 24/7 settlement services and all-in-one dashboard make the service a good solution for businesses.
3. Chainalysis: Best Blockchain Analytics
Pros
- Keeps you safe from interacting with compromised addresses and illicit protocols
- Used to track down the trail of illegal funds by tracing back blockchain transactions to suspicious addresses and protocols
- Navigate DeFi and NFT trading safely
Cons
- Tools primarily for businesses and government entities
- Unclear pricing and trial terms
Key Features
Chainalysis is a blockchain explorer and analytics tool that detects fraudulent and illicit blockchain activity. Individuals, businesses, and government authorities can use Chainalysis to trace the trail of compromised funds across multiple tokens and chains. The service also helps protect you from transacting with malicious actors on DeFi — both as an individual and a business.
- Comprehensive analysis and databases that are admissible as evidence in court
- Application Programming Interface (API) access to all analysis data allows companies to program custom solutions that rely on Chainalysis information and services.
- Autonomous wallet and transaction screening, along with real-time alerts
- Access to industry experts, 24/7 service, and a dedicated account manager
- Suspicious wallet addresses are marked to prevent exchanges and individuals from making trades with them and putting their funds at risk.
What Sets It Apart
Chainalysis is a comprehensive blockchain explorer that allows individuals, businesses, and authorities to trace the trail of any funds. This provides peace of mind when using protocols, interacting with certain addresses, and trading on DeFi.
4. Consensys Diligence: Best Smart Contract Auditing Service
Pros
- Provides tools to find bugs and vulnerabilities in Ethereum smart contracts
- Consensys team has done audits for large crypto projects like Aave, Notional Finance, and 1inch
- Provides audit services for every step of development cycle
Cons
- Have to contact to get a quote
Key Features
Consensys Diligence is a smart contract auditing service. The company has done work for large DeFi projects like Aave, 0x, and over 100 other blockchain companies. Consensys Diligence provides the following services:
- Smart contract audits and comprehensive code reviews
- Automated security analysis using an API that scans for vulnerabilities
- Smart contract testing can translate an outline for how a service should work directly into code
- Automatic audits can detect vulnerabilities in code before features are launched in order to prevent potential hacks
- Enterprise security counseling for enterprises of all stages
- Threat modeling to zero in on entry points for malicious actors
- Incident response planning provided by a "Diligence" team
What Sets It Apart
There are many smart contract auditing services out there, but only a few have the reputation necessary to work with the really big players. Consensys Diligence ticks this box several times over due to its work with Aave, 0x, Notional Finance, 1inch, and many other flagship crypto companies.
5. CertiK: Best Full Security Suite
Pros
- All-in-one suite of security products
- Services include both crypto-specific security features and also traditional web security features
- Touted as leading web3 security company
Cons
- Must contact to get quotes for services
Key Features
CertiK provides a wide range of security services for blockchain companies. The company is one of the leading blockchain security service providers.
- Smart contract audits that assess the security of code and blockchain protocols
- On-chain security monitoring to detect risk and fraud using on-chain data
- Know-Your-Customer (KYC) identity verification services
- Penetration testing and attack simulations for exchanges, wallets, and decentralized apps
- Crowdsourced bug bounty projects
- Wallet tracing and visualization technologies to follow the trail of transactions
- 24/7 incident response teams
What Sets It Apart
CertiK’s holistic approach to security makes the company a clear choice over many competitors that provide piecemeal security options. Getting your smart contract audits, KYC, wallet tracing, and other security services from a single company is a good way to ensure all aspects of your business are secure.
6. Harpie: Best Free Service
Pros
- Provides always-on protection from all types of wallet-level attacks
- An RPC endpoint can revert malicious transactions before they’re confirmed on the blockchain
- Protects any type of blockchain asset, including tokens and NFTs
Cons
- Can introduce friction into the transaction process by requiring manual transaction approvals
- Only available for Ethereum wallets
Key Features
The Harpie tool takes several complementary approaches to protecting your assets. Harpie maintains a database of suspicious and malicious Ethereum wallets, warning you any time you are about to send an asset to a potentially dangerous address. Harpie can also take the wheel directly if assets are moved out of your wallet without prior authorization, securing the assets in a special vault for safe retrieval.
- Background Check Monitoring
- Transaction Firewall
- Harpie Vault
- Enterprise API
What Sets It Apart
The real selling point here is the "free" price point. But on top of that, Harpie offers a robust suite of security features. The Harpie RPC endpoint sits between your wallet and the blockchain and scans all outgoing transactions, warning you of potentially malicious approvals and transfers. It offers wallet monitoring, transaction firewall, and threat response. In some cases, it can even recover stolen digital assets! DeFi enthusiasts wanting an extra layer of protection for their valuables can look to Harpie as an always-on wallet security system.
Why Do We Need Crypto Security Companies?
Just like you need good physical security to guard a bank safe, or good security cameras to guard the cash under your mattress, good crypto security is important in protecting your funds.
While cash can only ever be physically stolen, there are many ways your digital funds can be compromised:
- Smart contract hacks and exploits
- Phishing attacks and password scams
- Wallet hacks and credential leaks
- Government seizure of funds traced back to illicit wallet addresses
- Lost funds while transferring from one exchange to another
To Sum It Up
Any time you’re dealing with large sums of money, it’s important to have dependable security. Everyday traders and non-technical business owners may not even know all of the different ways their funds can be stolen. This is why it’s important to use security solutions like the ones outlined above for effective protection.
Frequently Asked Questions
To protect your crypto assets, always store your wallet passwords securely, and consider buying a hardware wallet.
You can also use third-party custody on exchanges like Coinbase to keep your assets safe or take advantage of hybrid custody solutions like Casa. There are also crypto browser extensions to help you keep assets secure while browsing.
- Write down your seed phrase physically and store it in a safe location.
- Never give your wallet seed phrase out to anyone.
- Use two-factor authentication for exchanges.
- Always check the URL of websites to avoid phishing.
- Don’t sign any transaction you don’t recognize.
Blockchains are built to be secure by nature, but every once in a while, certain exploits will be found. Hacks can happen through exchanges, wallets, smart contracts, bridge protocols between chains, and even through social engineering tactics like phishing.
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