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Colin Harper

Colin Harper

Colin writes about Bitcoin. Formerly, he worked at CoinDesk as a tech reporter. Now, he is the Head of Research and Content at Luxor Technologies, and he also freelances for CoinDesk, Forbes and Bitcoin Magazine." He holds bitcoin.

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Tech
Coinjoin
Wasabi Wallet Patches Flaw That Could Have Thwarted Bitcoin Privacy Feature
The flaw’s discovery is an example of cooperation in the open-source community, where devs are constantly tinkering to improve their peers’ software.
bullet-holes-in-a-front-windshield
By Colin Harper
Sep 3, 2020 at 5:49 p.m. UTC
Sep 3, 2020
CoinJoinDoSWasabi Wallet
jose-fontano-pzld9pipdno-unsplash
Tech
Security
Hardware Wallet Flaw Lets Attackers Hold Crypto for Ransom Without Touching Device
A hypothetical man-in-the-middle attack would have allowed an attacker to hold users’ crypto for ransom on Trezor and KeepKey hardware wallets.
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By Colin Harper
Sep 2, 2020 at 8:15 p.m. UTC
Sep 2, 2020
SecurityHardware WalletsTrezorKeepKey
justin-veenema-mi9tihde01k-unsplash
Tech
Ethereum
'DogByte' Attack Found in 'Randomness' Protocol Proof for Ethereum 2.0 Beacon Chain
The “DogByte” attack would have allowed attackers to cheat the Ethereum 2.0 random beacon chain by gaming smart contracts and block validator selection.
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By Colin Harper
Sep 1, 2020 at 7:36 p.m. UTC
Sep 1, 2020
EthereumEth 2.0CoinFlash
patoshi-satoshi-patterns-white-knight
Tech
Bitcoin mining
Protection Over Profit: What Early Mining Patterns Suggest About Bitcoin’s Inventor
Researchers believe Bitcoin’s creator probably used specialized mining software in the coin’s early days to protect the new network – not to profit from it.
patoshi-satoshi-patterns-white-knight
By Colin Harper
Aug 31, 2020 at 8:44 p.m. UTC
Aug 31, 2020
Bitcoin MiningSatoshi NakamotoResearchBitcoinSergio LernerPatoshi
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Tech
Coinjoin
Wasabi Wallet Is Revamping Its CoinJoin Design to Allow Bitcoin Mixing With Differing Values
Wasabi Wallet's new protocol would allow users to coinjoin with differing values, which could give users greater flexibility when using the privacy feature.
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By Colin Harper
Aug 27, 2020 at 9:40 p.m. UTC
Aug 27, 2020
CoinJoinBitcoinWasabi WalletBitcoin Privacy
mitgo
Tech
Mining malware
An AWS Virtual Machine Is Infected With Mining Malware. There Could Be Others
A monero mining script has been embedded in a public instance of an AWS virtual machine. How many others are similarly infected?
mitgo
By Colin Harper
Aug 21, 2020 at 1:00 p.m. UTC
Aug 21, 2020
Mining MalwareMoneroAWSCryptojacking
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Tech
Bitcoin
Dust Attacks Make a Mess in Bitcoin Wallets, but There Could Be a Fix
When dust settles in your home, you sweep it up. But what happens when dust makes its way into your Bitcoin wallet? Cleaning it up may not be so simple.
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By Colin Harper
Aug 18, 2020 at 4:03 p.m. UTC
Aug 18, 2020
BitcoinBitcoin TransactionsDustAttack
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Tech
Token
Newest DAO Project Was Thrown a Curve, but the Team Is Rolling With It Anyway
An anonymous DeFi user deployed Curve Finance’s DAO and token smart contracts without the team’s permission, but the Curve team is adopting it anyway.
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By Colin Harper
Aug 14, 2020 at 8:14 p.m. UTC
Aug 14, 2020
TokenDAODeFiCoinFlashCurve Finance