Users of the Luno cryptocurrency exchange can now earn passive income on bitcoin holdings through the firm’s new “savings wallet.” Launched Monday, the product is said to bring bitcoin savers up to 4% in interest per year, with no fixed terms. Luno – which is owned by CoinDesk's parent company Digital Currency Group (DCG) – said users can withdraw their bitcoin from the savings wallet into their normal wallet at any time. Interest is calculated on the first of every month. The firm's CEO and co-founder, Marcus Swanepoel, said in an announcement that the wallet was launched after a 95% of customers indicated they ... (full story)