Citrix Systems, Inc.

Robert Van Der Linden

David John Otway

Zhixue Wu

James Rabey

Methods and systems for creating a secure virtualization environment on a host device, without modifying the host device, the secure virtualization environment bootable from an external media device. A host computing device loads and boots a common operating system image stored on an external media device. A client agent stored on the external media device and executing in the common operating system image creates an adapted operating system image by copying the operating system of the host computing device, eliminating all unnecessary files and data and storing the adapted operating system image to the external media device. The host computing device provides a secure virtualized environment by booting the adapted operating system image.

Secure virtualization environment bootable from an external media device

A method that may include detecting, by a processor of a computing device, a network communication regarding transmission of a file to an external storage provider. The method may include causing encryption of the file to obtain an encrypted file, and associating authorization information with the encrypted file. The authorization information may include one or more restrictions on access to the encrypted file. The method may include transmitting the encrypted file to the external storage provider, and intercepting a request for access to the file. The method may include identifying requestor information regarding a requestor associated with the request, and determining, using the requestor information and a portion of the authorization information, that the requestor is authorized to access the encrypted file. The method may include causing decryption of the encrypted file to obtain the original file, and providing, to the requestor, by the processor, access to the original file.

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Cambridge, United Kingdom

Robert Van Der Linden