That night, Leo executed the trade across all four devices simultaneously—just for fun. Windows 11 for charts, Windows 10 for order entry, Mac for monitoring, and Windows 8 as a backup.

On his machine, the site auto-detected his OS and offered an .exe installer . Smooth. But when he clicked, Windows Defender blinked a warning: “Unknown publisher.” Most users would panic. Leo, however, remembered that crypto exchanges often use fresh code-signing certificates. He clicked “Run anyway” —and within seconds, the LBank app appeared, sleek and fast.

One evening, a friend sent him an urgent message: “Leo, there’s a flash sale on LBank for a new token. But you have to trade from a desktop—the mobile app lags.”