Smart Contract Proxy Storage Collision Explained
Proxy patterns enable smart contract upgrades, but storage slot collisions can silently corrupt funds, the mechanism, the tradeoffs, and what auditors check.
№ 002SecurityBulletproofs: Range Proof Verification at Logarithmic Scale
Bulletproofs cut Monero range proof sizes from ~13 KB to under 800 bytes. The mechanism is a recursive inner product argument, and the math holds up.
№ 003SecurityVerifiable Delay Functions and Randomness Beacon Security
VDFs make on-chain randomness manipulation structurally expensive via a sequential delay no adversary can compress. The mechanics, caveats, tradeoffs.
№ 004SecurityFormal Verification vs Smart Contract Security Audit
A security audit finds likely bugs. Formal verification proves their absence mathematically. The difference in cost, time, and guarantees, laid out plainly.
№ 005SecurityKeccak-256 Preimage Resistance and Ethereum's State Trie
How Ethereum's Keccak-256 hash function blocks preimage attacks on the state trie, explained with concrete mechanics and a worked example.
№ 006SecurityCross-Chain Governance Attacks via Bridge Collateral
Bridges holding governance-eligible collateral can swing a vote without buying a single token. The mechanics, failure modes, and limits of standard mitigations.
№ 007SecurityMerkle Mountain Ranges: Proof of Inclusion Explained
MMRs let blockchains prove data inclusion against a growing history without invalidating old proofs. The mechanic, the math, and the tradeoffs.
№ 008SecurityHomomorphic Encryption vs Zero-Knowledge Proofs
HE computes on encrypted data; ZK proofs verify claims about it. Understanding the mechanical difference prevents costly architectural mistakes.
№ 009SecurityHow DeFi Price Oracles Fail Under Flash Loan Attacks
Flash loans and slow manipulation break oracles in opposite ways. Understanding the mechanics helps you see why no single fix solves both problems.
№ 010SecurityBitcoin Peer Discovery and Eclipse Attacks Explained
Bitcoin's peer discovery resists eclipse attacks via randomized bucketing, anchor peers, and subnet limits, but the gaps are real and worth knowing.
№ 011SecurityConfidential Asset Protocols: Hiding Amounts on Chain
Pedersen commitments and range proofs shield transaction amounts on-chain while preserving cryptographically sound audit trails for regulators and investors.
№ 012SecurityReplay Attacks vs Double-Spends on Forked Chains
Replay attacks and double-spends differ mechanically, defensively, and in attacker effort. The distinction shapes real security decisions on forked chains.
№ 013SecuritySilent Inflation Bugs in Zero-Knowledge Proof Systems
ZK inflation bugs mint tokens from nothing while every proof verifies clean. The mechanism, the failure modes, and what a real detection framework requires.
№ 014SecurityTexas Brothers Plead Guilty in $8M Crypto Robbery
Two Texas brothers admit to a violent crypto robbery that allegedly netted $8 million. Each could serve up to 20 years. What the case signals.
№ 015SecurityFrance Sets 2027 Deadline for Quantum-Safe Encryption
France will stop certifying products without quantum-safe encryption in 2027, just as Bitcoin developers weigh their own post-quantum timeline.
№ 016SecurityPedersen Commitments and Confidential Transactions Explained
Pedersen commitments hide transaction amounts while letting anyone verify no coins were created from nothing. The exact mechanism, step by step.
№ 017SecurityRug Pull vs Exit Scam: DeFi Protocol Structure Explained
Rug pulls and exit scams aren't the same thing. Here's how their mechanics differ in DeFi protocol design, and what each one looks like in practice.
№ 018SecurityDeFi Exploits Wiped $13B in TVL, Binance Research Finds
Binance Research counts $13B drained from DeFi protocols in a single exploit wave. We break down what got hit, who's exposed, and what to watch.
№ 019SecurityHow Smart Contract Bytecode Hides Malicious Logic
Standard audit tools miss tricks buried in EVM bytecode. Here's the concrete mechanism, with real techniques and what auditors actually check.
№ 020SecurityMost Crypto Losses Aren't Hacks. They're Signatures You Approved
The scary stories are about stolen keys. The common stories are about a transaction you signed without reading.
№ 021SecurityZero-Knowledge Proofs: Proving Compliance, Not Data
Zero-knowledge proofs let crypto firms prove regulatory compliance to auditors without revealing any underlying user data. Here's the exact mechanism.
№ 022SecurityHumanity Protocol Token Jumps 210% After $36M Hack
Humanity Protocol's H token surged 210% to top crypto gainers, just days after a $36M hack security firm Quantstamp ties to North Korean actors.
№ 023SecurityWhy Blockchain Analytics Tools Flag False Positives
Blockchain analytics tools misfire more than vendors admit. Here's the exact mechanics behind false positive sanctions matches and how to reduce them.
№ 024SecurityCoinbase Quantum Risk Report Flags Bitcoin Cold Wallets
Coinbase's quantum risk report puts exchange cold wallets among the bitcoin exposed by address reuse. What the warning means and what to watch.
№ 025SecurityBug vs Attack Chain Reorganizations: Key Differences
Chain reorgs look identical on the surface. Here's how engineers and analysts tell a bug apart from a deliberate attack, and why it matters.
№ 026SecuritySybil Attacks on Nakamoto Consensus: The Real Cost
Why flooding a proof-of-work network with fake identities doesn't work: the economic mechanics that make Sybil attacks prohibitively expensive.
№ 027SecurityWhy Smart Contract Audits Miss Reentrancy Bugs
Single-function reentrancy is well-understood. Cross-function and cross-contract variants still slip through audits. Here's exactly why, and how.
№ 028SecurityHow zk-SNARKs Stay Small Without Breaking Soundness
zk-SNARKs produce tiny proofs that verify in milliseconds. Here's the exact mechanism that makes them compact without letting cheaters through.
№ 029SecurityAI Crypto Security Threat Sparks DeFi Hack Surge
Immunefi's CEO blames frontier AI models for a wave of DeFi exploits, with $634M stolen in April alone. Here's the case, and the timeline he's watching.
№ 030SecurityClaude Fable 5 Spooks DeFi: Anthropic's Risky Release
Anthropic shipped Claude Fable 5 with safeguards, but crypto builders fear the model drops the cost of finding smart contract exploits to near zero.
№ 031SecurityRaydium Exploit Drains $1.34M From Deprecated Pools
A $1.34 million Raydium exploit hit five retired AMM liquidity pools on Solana. Here's what failed, and why old code keeps biting DeFi.
№ 032SecurityHumanity Protocol Hack: H Token Crashes 85% on $36M Theft
Humanity Protocol's H token fell roughly 85% after attackers drained over $36 million through compromised private keys. Here's what we know so far.