Blockchain.info , the Bitcoin wallet service , was forced offline this week after a DNS attack that left 8 million users vulnerable to cyber attack . After discovering that Blockchain.info 's website DNS information had been altered to re - direct site visitors to a potentially malicious site , administrators took the domain down . During the attack , users were at risk of bitcoin theft or malware infections , but it took less than 24 hours for the domain to be restored . The digital - currency wallet handles up to 100,000 unique transactions daily .
Blockchain.info, the Bitcoin wallet service, was forced offline this week after a DNS attack that left 8 million users vulnerable to cyber attack. After discovering that Blockchain.info's website DNS information had been altered to re-direct site visitors to a potentially malicious URL, administrators took the site down. During the attack, users were at risk of bitcoin theft or malware infections, but it took less than 24 hours for the domain to be restored. The digital-currency service handles up to 100,000 bitcoin transactions daily.