No, it's not a late April Fools.
“I’m totally screwed.” WD My Book Live users wake up to find their data deleted | Ars TechnicaWestern Digital, maker of the popular My Disk external hard drives, is recommending that customers unplug My Book Live storage devices from the Internet until further notice while company engineers investigate unexplained compromises that have completely wiped data from devices around the world.
The incident is under active investigation from Western Digital. We do not have any indications of a breach or compromise of Western Digital cloud services or systems.
We have determined that some My Book Live devices have been compromised by a threat actor. In some cases, this compromise has led to a factory reset that appears to erase all data on the device. The My Book Live device received its final firmware update in 2015.
At this time, we are recommending that customers disconnect their My Book Live devices from the Internet to protect their data on the device.
We have issued the following statement to our customers and will provide updates to this thread when they are available: https://community.wd.com/t/action-required-on-my-book-live-and-my-book-live-duo/268147