See Also
ELI5: Blockchains explained in simple terms
A blockchain is a database formed by a sequence of entries called (you guessed it) blocks. Blockchains have a special characteristic by which any attempt to modify one of its entries would modify the entire chain. It is, therefore, an immutable data structure, which stores blocks in chronological order of insertion. This makes blockchain a […]
ELI5: Why is the “fast” Ethereum sync so slow?
Why is the geth sync so slow? I keep hearing this question again and again from Ethereum node operators. Why is it still so difficult to fully sync an Ethereum full node? Slow Geth Users have been complaining forever now about the notoriously slow geth sync on the official Ethereum wallet. Some even question the […]
2016 Bitcoin and Altcoin Hacks [Part 8]
This article is part of our complete guide to Bitcoin and altcoin hacks. Here we cover Bitcoin and altcoin security incidents from the year 2016. Gatecoin In May 2016 an attack on Gatecoin’s hot wallets cost them U$ 2 million in damages. As much as 185,000 ETH and 250 BTC were stolen in the heist. […]
2017 Bitcoin and Altcoin Hacks [Part 9]
This article is part of our complete guide to Bitcoin and altcoin hacks. Here we cover Bitcoin and altcoin security incidents from the year 2017. BitGrail In late 2017, Italian cryptocurrency exchange BitGrail was hacked and 2.5 million NANO were stolen. Initially, the exchange reported the issue as a “maintenance”: XRB withdrawals will be enabled […]