Ethereum clients that still haven't patched known vulnerabilities pose a security risk to the entire network, according to new research.
A third of all ether is owned by just 376 whales, blockchain analysis firm Chainalysis says. Yet that number is down from some previous years.
A U.S. Department of Energy lab is exploring blockchain technology as a line of defense against cyberattacks on power plants.
Three-quarters of U.K. consumers don't know what a cryptocurrency is or can't define it, according to a survey by the nation's financial regulator.
Hackers could attack bitcoin with a flood of data, but researchers say they have a solution in the form of a relay network called SABRE.
Bitcoin has become more decentralized by several measures, according to a research report from Canaccord Genuity Group.
A recently discovered form of malware steals browser cookies and other information on Apple Mac computers to steal cryptocurrencies.
The proof-of-work algorithm used by bitcoin and some other cryptos is not viable in the long term, argues a Bank of International Settlements study.
In an apparent first, a relatively new form of malware uninstalls security programs to avoid detection and mine crypto on cloud servers.
The use of blockchain technology to help secure internet of things data, services and devices doubled last year, Gemalto research suggests.