Only 4% of Danish citizens own crypto, far below other European countries, as banks, taxes and risk fears limit adoption, according to a new staff paper from the country's central bank. Only 4% of Danish citizens own cryptocurrencies, a figure that has remained unchanged since 2023 despite the global growth of the sector across Europe and other jurisdictions, according to a new staff paper from the country’s central bank published Wednesday. The Danmarks Nationalbank staff paper, based on a survey conducted by Epinion, revealed that among those who do hold crypto, most maintain relatively small positions. The majority reported holdings below 10,000 Danish kroner (around $1,570), with total national holdings estimated between $317 million and $847 million. The survey is based on responses from 3,013 citizens aged 15 and above. The data was gathered between October and November 2025 through Denmark’s Digital Post system, with options to respond online or by phone. The sample was weighted to reflect national dem...
Most quantum-vulnerable Bitcoin sits in wallets holding under 100 Bitcoin, with CoinShares claiming it could take a millennium to compromise each one. Digital asset manager CoinShares has brushed aside concerns that quantum computers could soon shake up the Bitcoin market, arguing that only a fraction of coins are held in wallets worth attacking. In a post on Friday, CoinShares Bitcoin research lead Christopher Bendiksen argued that just 10,230 Bitcoin (BTC) of 1.63 million Bitcoin sit in wallet addresses with publicly visible cryptographic keys that are vulnerable to a quantum computing attack. A little over 7,000 Bitcoin are held in wallets with between 100 and 1,000 BTC, while roughly 3,230 Bitcoin are held in wallets with 1,000 to 10,000 BTC, equating to $719.1 million at current market prices, which Bendiksen said could even resemble a routine trade. Read more
Insider trading is hard to curb on non-KYC prediction markets, but even identity checks do not fully eliminate abuse, according to Messari’s Austin Weiler. Concerns over insider trading on prediction markets have intensified after a series of high-profile bets on geopolitical events, prompting fresh questions over whether it’s even feasible to curb such practices in the growing industry sector. Preventing insider trading is realistically possible only on prediction markets applying Know Your Customer (KYC) measures, according to Austin Weiler, a research analyst at the blockchain intelligence firm Messari. “For KYC’d platforms, the most effective mechanism is to restrict access upfront for users to specific markets,” Weiler told Cointelegraph, adding that state actors could be restricted from political or geopolitical markets. Read more