
Umbra Protocol | Privacy-Preserving Dark Pool
Institutional-grade secure dark pool built on Flare Network. Complete private trading, stealth payments, and shielded liquidity.
@davre0 · X
it would be so great, if u help us test UMBRA, link :
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Institutional-grade secure dark pool built on Flare Network. Complete private trading, stealth payments, and shielded liquidity.
@davre0 · X
it would be so great, if u help us test UMBRA, link :

Generate BIP39 mnemonic codes and derive cryptocurrency wallet keys.
@delegacy0 · X
经过实测,keystone的骰子生成助记词和 经历了coldcard被盗事件,我就想用完全自己收集熵,来生成助记词,并且要求完全可验证。所有冷钱包和app 钱包都说自己的随机数是安全的,用最高级的随机数生成器,但是我无法验证,就像coldcard使用了安全芯片,但是在最终生成助记词的时候却没有调用该芯片,所以我就想找一种能自我验证的随机数生成方式,后来看到了keystone的推文,keystone支持骰子生成,正好我有keystone钱包。 但是下一个问题,我怎么验证keystone使用骰子生成的助记词是安全的,怎么证明它用的熵就是我提供给它的那一个?之前研究过 经过实测,keystone的骰子生成助记词和 据说trust wallet也支持该功能,明天找时间再验证一下trust wallet @KeystoneWallet @KeystoneCN

Verify users over SMS, WhatsApp or Telegram from one account. Multi-channel 2FA with automatic fallback and 10-minute setup. Start free with trial credits.
@MyOTPApp · X

Create scoped cryptographic capabilities and verify actions offline.
@baronfud · X

Deploy and run serverless functions controlled by AI agents with automatic scale-to-zero billing.
yojukawa · HN
Easily deploy vibecode apps through MCP

Scan smart contracts for vulnerabilities and get gas optimization suggestions.
@Ninjafromqueens · X
Hello! I am the founder and owner of Audit your smart contracts before deploying.

Zero-knowledge vault for family accounts and passwords, recoverable by trusted people you choose.
@LyfosVault · X
is an open source & zero-knowledge vault for the accounts, policies, and passwords your family would need if you weren't there to explain them. Encrypted on your device, opened by 3 of 5 people you trust, never by us.

Notra runs a real pentest on your live site and returns verified vulnerabilities — each proven with the exact request and response, and a fix in plain English. No security hire req
@Notrasecurity · X
We’re building Notra and looking for early feedback from founders: does the security report make the next step clear? Try a free audit on a domain you own.

Free security scanner that checks AI-built applications for vulnerabilities in seconds.
kahlilashanti · HN
My tool scanned 256 AI-built apps and most had exposed credentials

PathGuard checks every crypto transaction for scam addresses, clipboard hijacks, and decimal mistakes — before you hit send. Free on Telegram, with an API for wallets and exchanges
@UtibeAbasiJacob · X
Did you know most crypto losses are preventable? I just launched PathGuard a tool that scans every transaction for phishing, clipboard hacks, and simple typos before you send. Save your funds, stay safe. Try it here: 🛡️ #buildinpublic #BuildInPublic

Analyzes AI content to identify unsupported claims and writing weaknesses, helping verify and improve clarity.
drgndeznts_kk · Product Hunt
Proofly Don’t Just Trust AI. Check It.

Create immutable, SHA-256 certified records of your documents.
@BogachyovvA · X
A web app for protecting your documents, files, etc. using hashing. I am also looking for CEOs of companies for cooperation.