MyBook Investigation Reveals Attackers Exploited Legacy, Zero-Day Vulnerabilities. A previously unknown flaw in Western Digital’s older network-attached storage systems allowed unauthenticated commands to trigger a factory reset, says the company. Western Digital urged users to disconnect the vulnerable storage systems from the Internet. The company plans to offer to recover the data of affected customers. The results of the investigation come five days after Western Digital users inundated support forums with complaints that their data had been completely deleted from their NAS systems.”]