Crashes, No Sound, or Screen Glitches?
Random freezes, missing sound and display glitches usually trace back to one bad driver. Find and replace yours safely.Free scan · under a minuteWindows Errors? Fix Them Before They Spread
Repair common Windows errors and clear accumulated junk for a smoother, more stable PC - no reinstall needed.Free scan · no reinstallBlockaid announced its emergence from stealth on October 5, 2023, with $33 million in combined seed and Series A funding. The Block later reported that the total comprised a $6 million seed round and a $27 million Series A. The financing backed a web3 security company whose software was designed to assess decentralized apps and blockchain transactions before users interacted with them.
What is Blockaid?
Blockaid is a web3 security company that develops tools to identify threats involving decentralized applications (dApps) and blockchain transactions. In its October 2023 launch announcement, the company said its tools scan, simulate, and validate dApps and transactions to help protect users from fraud, phishing, and hacks before activity occurs. CEO Ido Ben-Natan described the approach to The Block as simulating and validating blockchain transactions before they are executed.
At launch, Blockaid said integrations with MetaMask, OpenSea, Rainbow, and Zerion gave it broad visibility into transactions. That customer and integration description was the company’s statement in October 2023, not an independent assessment of market coverage.
How was the $33 million investment split?
The $33 million was the combined amount for Blockaid’s seed and Series A rounds announced at its October 2023 stealth exit. The Block reported the following breakdown on October 23, 2023:
#1 Best Overall
- Proven security at scale: Over 9 years and millions of cards issued with no known remote hacks, while military‑grade EAL6+ security keeps your private keys locked inside the chip. Your cryptocurrencies stay strongly protected from online attackers.
- Tap once to manage your entire crypto wallet across 90 blockchains - no USB cables or Bluetooth, no batteries, no setup. Access 14,100+ coins & tokens, DeFi, NFTs, and staking instantly from your phone
- Smart backup: Use your second Tangem Wallet as your Backup keys with end‑to‑end encryption; no more papers, pictures. If one card is lost, the remaining can still restore full access, with an optional seed phrase available for advanced users.
- Engineered to last up to 25 years: Waterproof (IP69K), shockproof and tested for extreme temperatures from −25°C to 50°C. A durable cold wallet with long‑term protection and independently audited security.
- Trusted by 6 million users worldwide - buy, sell, swap, stake, and spend cryptocurrency directly. The secure offline storage wallet designed for how people actually use crypto wallets
| Round | Amount | Investor details reported |
|---|---|---|
| Seed | $6 million | Sequoia, Greylock, and Cyberstarts participated. |
| Series A | $27 million | Ribbit and Variant co-led the round; Sequoia, Greylock, and Cyberstarts also participated. |
Blockaid’s October 5 announcement named Ribbit, Variant, Cyberstarts, Sequoia, and Greylock as investors. The Block’s later report specified which firms participated in each round, but the reviewed sources did not disclose individual investor contributions.
What does Blockaid do to secure crypto transactions?
Blockaid’s launch-era proposition was to simulate what might happen when a user interacts with a dApp or submits a blockchain transaction, then flag activity that appears malicious before execution. The Block reported that the company’s dApp Scanning Engine simulated possible user interactions and that a sandbox checked whether the interaction or dApp was malicious. This is a preventive security layer; the cited descriptions do not establish that it can detect every threat or reverse a transaction after it is sent.
Rank #2
- Proven security at scale: Over 9 years and millions of cards issued with no known remote hacks, while military‑grade EAL6+ security keeps your private keys locked inside the chip. Your cryptocurrencies stay strongly protected from online attackers.
- Tap once to manage your entire crypto wallet across 90 blockchains - no USB cables or Bluetooth, no batteries, no setup. Access 14,100+ coins & tokens, DeFi, NFTs, and staking instantly from your phone
- Smart backup: Use your second Tangem Wallet as your Backup keys with end‑to‑end encryption; no more papers, pictures. If one card is lost, the remaining can still restore full access, with an optional seed phrase available for advanced users.
- Engineered to last up to 25 years: Waterproof (IP69K), shockproof and tested for extreme temperatures from −25°C to 50°C. A durable cold wallet with long‑term protection and independently audited security.
- Trusted by 6 million users worldwide (4.9 App Store, 4.8 Google Play) - buy, sell, swap, stake, and spend cryptocurrency directly. The secure offline storage wallet designed for how people actually use crypto wallets
Blockaid’s current About page, accessed October 4, 2026, describes a broader set of services: smart contract monitoring, transaction simulation, dApp scanning, token security tools, and onchain and offchain threat hunting. Those current capabilities should not be assumed to describe the entire product at its October 2023 launch.
How did Blockaid’s MetaMask integration work?
On October 31, 2023, Consensys announced that MetaMask and Blockaid were launching security alerts in the MetaMask extension. The announcement described a privacy-preserving simulation module intended to avoid sending every transaction and signature request to external parties.
The Tool Desk
Outbyte Driver Updater FREEScan for outdated or missing drivers - takes under a minuteDriver Scan →Outbyte PC Repair FREERepair Windows errors before they cause bigger problemsFix Now →Rank #3
- Quality materials: these steel crypto wallets are made of 304 stainless steel with a melting point of over 2500 Fahrenheit degrees, designed and tested to be preservative, fireproof, waterproof, and impact-resistant, and can serve you for a long time
- Products quantity: you will receive a 2-in-1 set of steel bitcoin wallets with matching lock screws, and 1 piece of metal plate marking pen, which is a matching set to help you protect your codes, passwords, and further importantly, your cryptocurrency
- Functions: with these steel crypto wallets you can record information such as fieldworks passphrase in tandem with the BIP39 word list, and they are also compatible with 12 or 24-word seed in most languages, suitable to store your private cryptocurrency information or for many instances where you may need a private cold storage system
- Suitable size: the cold wallet backups are compatible with BIP39 wallets, can work with most hardware wallets, supports up to 24 mnemonics seed phrases, convenient for you to use in coordination with other crypto seed storage devices and wallets
- Multiple ways of locking: you can use the matching screws to lock up the steel bitcoin wallets; You can also lock them up and hide them in other places if you still feel unsafe; The hole on the bitcoin wallet measures 6 mm/ 0.24 inch in diameter, suitable for hanging
The rollout details in that announcement were plans made at the time: opt-in availability on desktop began October 31, mobile availability was anticipated later in November, and default enablement was planned for Q1 2024. These dated plans do not establish current MetaMask settings or availability.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.What impact did Blockaid report?
Blockaid’s October 5, 2023 announcement said that over the preceding six months it had scanned more than 450 million transactions, prevented 1.2 million malicious transactions, and secured more than $500 million in user funds that could have been compromised. Separately, The Block attributed other cumulative figures to Ben-Natan in October 2023: over 450 million transactions scanned, more than 1.3 million attacks prevented, over $7.1 billion in assets protected, and over $500 million in losses averted. These sets of figures use different labels and scopes and should not be merged into a single measurement.
Rank #4
- UNPARALLELED SECURITY: Protect your assets with Trezor Safe 5's NDA-free EAL 6+ Secure Element, offering robust defense and complete transparency.
- EFFORTLESS NAVIGATION: Experience seamless crypto management with the vibrant color touchscreen, designed for intuitive and user-friendly interactions.
- ENHANCED USER EXPERIENCE: Enjoy tactile confirmation with Trezor Touch Haptic Engine, making each interaction precise and engaging.
- SUPPORTS 1000s OF COINS & TOKENS: Securely handle thousands of assets, including Bitcoin, Ethereum, and more, all in one wallet.
- EASY ASSET MANAGEMENT: Monitor and transact seamlessly with Trezor Suite, our user-friendly desktop and mobile app
In its February 18, 2025 Series B announcement, Blockaid reported that since coming out of stealth it had secured over $101 billion in assets, prevented more than $5.3 billion in potential losses, scanned over 2.4 billion transactions, protected over 787 million dApp connections, and detected and blocked more than 71 million attacks. Its homepage, accessed October 4, 2026, displayed 5.9 billion transactions scanned, $312 billion in assets secured, 527 million attacks prevented, and $13.1 billion in theft prevented. These are company-reported operational metrics; the cited sources do not identify them as independently audited measurements.
How much has Blockaid raised since its stealth exit?
The $33 million figure refers only to the combined seed and Series A financing announced in October 2023; it is not Blockaid’s current lifetime funding total. The company announced a separate $50 million Series B in February 2025, led by Ribbit Capital with participation from GV and existing investors including Variant and Cyberstarts. On its About page accessed October 4, 2026, Blockaid reported $83 million raised overall.
Recommended Free Tools
Who founded Blockaid?
The Block reported that Ido Ben-Natan and Raz Niv founded Blockaid in September 2022. It said both had worked in cybersecurity research and development at Israel’s Unit 8200 and the Office of the Prime Minister. Blockaid’s own description characterizes the founders as former Israeli cyber intelligence operatives.
Quick Recap
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
