Blockfence
2 known investors
Find your way into Blockfence
Blockfence is a crypto news publication that reports on markets, regulation, DeFi, exchanges, infrastructure, stablecoins, and NFTs, with particular strength in security and fraud coverage. It originally began as a Web3 security company building software to warn users before approving malicious wallet transactions.
Also known as Blockfence.io
Investors Β· 2
Company profile
researched Aug 2026Blockfence is a crypto news publication that reports on markets, regulation, DeFi, exchanges, infrastructure, stablecoins and NFTs, with continued emphasis on security and fraud coverage. Its site organizes content into Crypto News, Markets, Crypto Incidents and Guides sections, plus a recurring security briefing, and states an editorial approach of verifying claims, naming sources and prioritizing readers over advertisers, partners or projects.
The company started as a Web3 security business. Its principal product was an open-source, community-driven browser extension that monitored browsing and wallet activity and alerted users before they approved transactions that could put funds at risk. The extension combined analyses of on-chain and interface-level signals, patent-pending machine learning algorithms, community-contributed data and inputs from ecosystem security partners, and included a GPT-based smart contract transaction interpreter that explained pending transactions in plain English. It was designed to require no wallet permissions or login, held no allowance over user funds, and collected only the current site URL (for phishing detection) and publicly available transaction details, with both checks disableable in settings. Code assurance measures cited include OWASP Top 10 compliance and static, dependency and semantic code analysis via Sonarqube, Dependabot and CodeQL. A third-party company listing describes Blockfence as an investigation and protection layer for wallets, exchanges and enterprises against scams and fraud.
Founding story
The company traces its origin to an incident in which a close associate of the founding team β a long-time crypto user β approved a single malicious transaction that drained his wallet, costing a high six-figure USD equivalent within seconds. That event motivated building software to warn users before they sign transactions that could compromise their assets.
Business model
Blockfence's original security product was a free browser extension, described as always remaining free for its community, with no login or personal account required. The current publication distributes editorial content on its own website across news, markets, incident coverage and explanatory guides. The company states it places readers ahead of advertisers, partners or projects and criticizes paid placement in crypto media, though the sources do not describe how the publication is financed.
Traction
The open-source extension repository shows 31 stars, 3 forks and 157 commits, and the extension was distributed through the Chrome Web Store. The news site lists 44 Crypto News, 32 Crypto Incidents, 30 Markets and 15 Guides articles as of August 2026, with a small named editorial team.
Latest developments
As of August 2026 the site is publishing daily crypto coverage, including reporting on exchange licensing in Japan, Korean exchange volumes, corporate bitcoin treasury results, chain exploits and phishing campaigns, with named staff bylines. An about page dated to the publication era describes the completed shift from security software vendor to news organization.
βΈFull profile β market position, technology, go-to-market, history
Market position
Blockfence operates as an independent crypto news outlet positioned against coverage it characterizes as hype-driven or paid placement. In its earlier form it was one of several Web3 transaction-security and wallet-protection tools, working alongside other security partners and data providers rather than solely competing with them.
For the security product, Blockfence emphasized a layered detection approach spanning the blockchain level through the user interface, patent-pending machine learning models, a GPT-based transaction interpreter that renders pending transactions in plain English, community-contributed data that improves the core engine as usage grows, partnerships with other security providers, a privacy design requiring no login or wallet access, and a permanent free-of-charge commitment. For the publication, it positions its differentiation as security-derived expertise, claim verification, source attribution and independence from advertisers and projects.
Technology
The extension is built as a browser add-on (TypeScript/JavaScript toolchain with webpack, Storybook and a Chrome unpacked-build developer workflow) that connects to a Blockfence API server. Detection combines multi-layer analyses from the blockchain layer up to the user interface, patent-pending machine learning and AI models intended to anticipate emerging scam patterns, aggregated community data, partner data feeds, and a GPT-based transaction interpreter. Security engineering practices cited include OWASP Top 10 compliance and Sonarqube, Dependabot and CodeQL scanning in the release pipeline. The extension requires no wallet allowance and minimizes collected data.
Go-to-market
The security product was distributed free through the Chrome Web Store and as an open-source repository on GitHub, supported by community participation, ecosystem security partnerships and media coverage. The current publication reaches readers directly through its website, organized by topic sections and a recurring weekly security briefing.
The security extension targeted Web3 and crypto wallet users, from newcomers to experienced participants, and the company has also been described as serving wallets, exchanges and enterprises. The publication targets readers seeking coverage of the crypto industry across markets, regulation, protocols and security incidents.
History
Blockfence was founded as a Web3 security company after a member of the team's circle β an experienced crypto user β signed a malicious transaction and lost a six-figure USD sum in seconds. The company built and open-sourced a browser extension that screened transactions and websites for fraud, published it on the Chrome Web Store as a free beta, and worked with security partners and data providers. Its team was described as having built enterprise-grade security products at companies including PayPal and Meta (Facebook), as well as in national/special intelligence units, alongside crypto-native contributors. Observing that crypto had an information problem in addition to a security problem, the company widened its focus and now operates as a crypto news publication, with security and fraud remaining a core beat.
Compiled by commissioned research from 8 cited public sources β announcements, filings, and press listed under research sources below.
Key figures
latest reportedCompany-reported or press-reported figures, each dated to when it was claimed β not independently audited.
Timeline Β· 2
launches, deals, and filingsThe company states it began as a Web3 security business whose software warned users before they approved wallet-draining transactions, and has since widened its focus to operate as a crypto news publication covering markets, regulation, DeFi, exchanges, infrastructure, stablecoins and NFTs, while retaining security and fraud as a core beat.
Blockfence published an open-source, community-driven browser extension distributed via the Chrome Web Store that screens for phishing sites, malicious smart contracts and scam protocols, and includes a GPT-based transaction interpreter that explains pending wallet transactions in plain English. The extension was offered free of charge as a beta release.
Dated company events from announcements, filings, and press; legal rows summarize public dockets and regulator releases.
βΈResearch sources Β· 8
primary sources listed
- Blockfenceblockfence.io Β· web
8 public sources were cited for this profile; the first-party ones are listed here.
Frequently asked questions
- What does Blockfence do?
- Crypto news publication covering markets, regulation and security, which began as a Web3 browser-extension anti-fraud company.
- Who are Blockfence's investors?
- Blockfence's investors include Flori Ventures, WWVentures.