Just looked at it. Based on the information on their website, I am pretty confident in stating that is is not a zero knowledge system. Security The Thunder Drive service is hosted in premier Tier IV data center facilities that are highly secure, fully redundant, and certified for SOC-2 and ISO 27001 compliance. Each site is staffed 24/7/365 with on-site security personnel to protect against unauthorized entry. Security cameras continuously monitor the entire facility—both indoors and outdoors. Biometric readers and two-factor or greater authentication mechanisms secure access to the building. Each facility is unmarked so as not to draw attention from the outside. Thunder Drive employs advanced network security elements, including firewalls and other boundary protection devices to monitor and control communications at internal and external network borders. These border security devices segregate customers and regulate the flow of communications between networks to prevent unauthorized access to Thunder Drive infrastructure and services. Thunder Drive supports a comprehensive set of data privacy and security capabilities to prevent unauthorized access and disclosure. Strong user authentication features tightly control access to stored data. Access control lists (ACLs) and administratively defined policies selectively grant read/ write and administrative permissions to users, groups of users, and roles. Thunder Drive encrypts data at rest and data in transit to prevent leakage and ensure privacy. All data stored on Thunder Drive is encrypted by default to protect data at rest. And all communications with Thunder Drive are transmitted using HTTPS to protect data in transit. Thunder Drive cloud storage is engineered for extreme data durability and integrity. Thunder Drive provides eleven 9s object durability, protecting data against hardware failures and media errors. In addition, Thunder Drive supports an optional data immutability capability that protects data against administrative mishaps or malicious attacks. An immutable object cannot be deleted or modified by anyone—including Thunder Drive. Thunder Drive data immutability protects against the most common causes of data loss and tampering including accidental file deletions, viruses and ransomware. Thunder Drive is engineered to meet stringent data security and privacy requirements. The service is built and managed according to security best practices and standards, and employs a defense-in-depth approach to protect against a wide array of threats. We ensure the physical security of our data centers, implement strong authentication and access controls to safeguard infrastructure and services, and encrypt data at rest and in transit to protect privacy and prevent unauthorized disclosure. Nowhere in here does it discuss you having your own security keys and owning your data. Cheers, Scott > On Jul 30, 2019, at 12:10 PM, Bruce Davis <talesian [ at ] gmail [ dot ] com> wrote: > > No personal experience with the company, but at first glance it looks interesting. > > Sent from my iPhone > > On Jul 30, 2019, at 9:30 AM, Griffin Services Plus INC Info <info [ at ] gspi [ dot ] ca> wrote: > >> Any Experience? >> >> https://stacksocial.com/sales/thunderdrive-pro-2tb-lifetime-subscription >> >> -- >> James N. Romeo II ABCP >> Griffin Services Plus INC >> info [ at ] gspi [ dot ] ca >> 855-567-6636 >> >> <b92cd463.bmp>