Today the network was attacked by a transaction spam attack that repeatedly called the EXTCODESIZE opcode (see trace sample here), thereby creating blocks

During the last couple of weeks, the Ethereum network has been the target of a sustained attack. The attacker(s) have been very crafty

The Ethereum network will be undergoing a hard fork at block number 2463000, which will likely occur between 12:00 and 13:00 UTC on

Mist leaks some low level APIs, which Dapps could use to gain access to the computer’s file system and read/delete files. This would

One of the important indicators of how much load the Ethereum blockchain can safely handle is how the uncle rate responds to the

Summary: In some situations, variables can overwrite other variables in storage. Affected Solidity compiler versions: 0.1.6 to 0.4.3 (including 0.4.4 pre-release versions) Detailed

This blog post provides an update on our findings following the discovery of the storage corruption bug last week. In summary, the bug was much less severe than

The Go Ethereum team is very proud to finally release Geth 1.5, which can almost be called a complete internal rewrite of the Go

The Ethereum network will be undergoing a hard fork at block number 2,675,000, which will likely occur between 15:00 and 16:00 UTC on

Testing a fork The Spurious Dragon hardfork is scheduled for the coming week; block 2675000 is likely to occur Tuesday evening (CET). The