Wu Shuo learned that Coinbase CEO Brian Armstrong recalled that in the early days, the platform only used hot wallets, which posed extremely high risks. The rapid growth of user deposits made him realize the need to establish a cold wallet system as soon as possible. Although experts suggest that the system should take about 10 people and 18 months to develop, Coinbase only has two engineers and 8 weeks to complete. After encountering signs of a hacker attack, Armstrong and Charlie Lee urgently developed a cold storage system, completed key generation and multi location backup, and successfully completed asset transfer in the last week. The system has been running stably for many years and has been iterated to version 5. Armstrong stated that this is one of the early critical moments for the company, and if it is not completed in a timely manner, Coinbase may not be able to survive. https://www. (wublock123.com)/index.php? m=content&c=index&a=show&catid=6&id=45244