A Sui Bridge Claim Bot Just Paid the Cetus Hacker — 17 Months After the Freeze
A rescue bot finalized the Cetus hacker's 17-month-old bridge claims and paid out $392K. Why dormant bridge claims are live liabilities for every chain.
On-chain Safety Education
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Onchain Diary is an independent Web3 safety education site: 123 deep-dive articles, a 232-term glossary, and the complete BIP-39 wordlist: covering crypto scams, smart contract security, and on-chain analysis. No jargon. No sign-up. No tools to install. Just the knowledge you need to stop getting rekt.
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Best Ways to Verify Token Addresses: 6 Checks That Hold Up Against Real Scams
Six ways to verify a token address before you buy: official-source cross-checks, explorer verification, scam scanners, and how scammers fake each signal.
Fake Crypto Exchange Scams: Why the Balance Grows but the Withdrawal Never Comes
The dashboard shows profit, the withdrawal is frozen, and support wants a fee. How fake crypto exchanges work, the deposit-address test that exposes them, and what to do now.
The Task Scammer Who Lost 60 BTC to a Tampered Ledger Wallet
A task-scam operator kept 60 BTC of stolen proceeds in tampered Ledger wallets — drained in a single morning. A rare look at scammers getting scammed.
Denmark CPR Breach: 8.8M Identities Sat Behind a '123456' Password
Millions of citizen records with trivially weak passwords — and crypto accounts in the blast radius. What the breach exposed and what to do now.
Ledger Implants Reach European Retail: Two MediaMarkt Devices, One 'Eurasian Version' Antenna
Hardware implants found in Ledger devices at European retail; the chain delisted Ledger group-wide. What's verified, what's speculation, what to check.
Test yourself
Reading is half. The other half is recall.
T-01
The Yellow Paper Quiz
Every question is drawn strictly from the Yellow Paper's own text. No outside knowledge required: if you've read it, you can pass it.
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Sixteen scenario questions sort you into one of sixteen security personas: hunter or prey: with a safety index and a shareable result card.
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