Crypto Coins News - Ratings - Reviews
Just a couple snippets from this report. These are in the section "Cyber threats to virtual currencies".
"Importantly, high-tier opponents could rely on lower-tier techniques, and often do so to obfuscate their identities and their capabilities."
"Indeed, as Bonneau and coauthors point out: 'If a majority miner’s goal is explicitly to destroy Bitcoin’s stability and hence its utility as a currency, they can certainly do so by intentionally introducing deep forks or rejecting other miner’s blocks . . . A state wishing to damage Bitcoin to avoid competition with its own currency, or an individual heavily invested in a competing currency, may be motivated to attempt such an attack.' "
"In other words, a Goldfinger attack comprises a cartel formation, in which the cartel, through its dominant computational power, can change the market rules (to undermine faith in the currency), disallow certain users of the currency (to drive out a subset of users from the currency market)"