Tag: Attack
The Blockchain Security Debate
Recently, a massive wave of articles has been discussing the question whether Bitcoin was using too much electricity to be sustainable. Since Bitcoin's Proof-of-Work...
Strength in Numbers: a Brief History of 51% Attacks
Ever since the first decentralized blockchain-based cryptocurrency (Bitcoin), there have been attempts at a network takeover, termed a "51% attack." These occur when an...
Evil ISPs can disrupt Communication between Bitcoin Nodes
ETH Zurich scientific and technical researchers are working with Aviv Zohar (from the Hebrew University in Israel) to underscore attacks on Bitcoin through the...
