Abstract: Code intended to operate in an operating system without an isolation mechanism is executed in isolation. The present system enables synthetic transactions to be executed in isolation without affecting other client data and files. Isolation may be outsourced to a separate set of servers that have an operating system which does support isolation. A handshake or other protocol is utilized to maintain secure data and communication. Untrusted script code provided by a customer is isolated in one or more remote servers. To execute the script on a client machine, a key is provided to access this script. A machine at which the script is to be run is provided with the key and the address of the script code on the remote server. A secure connection is established between the client machine and the script code server and script is executed on the client machine.

Abstract: Code intended to operate in an operating system without an isolation mechanism is executed in isolation. The present system enables synthetic transactions to be executed in isolation without affecting other client data and files. Isolation may be outsourced to a separate set of servers that have an operating system which does support isolation. A handshake or other protocol is utilized to maintain secure data and communication. Untrusted script code provided by a customer is isolated in one or more remote servers. To execute the script on a client machine, a key is provided to access this script. A machine at which the script is to be run is provided with the key and the address of the script code on the remote server. A secure connection is established between the client machine and the script code server and script is executed on the client machine.

Abstract: A method and device for predicting faults in a distributed heterogeneous IT system (100), the method comprising: creating a local checkpoint (19) in an explorer node (10) of said system (100), said local checkpoint (19) reflecting the state of said explorer node (10); running a path exploration engine (14) on said local checkpoint (19) in order to predict faults, wherein a plurality of possible inputs (71) are used by said exploration engine (14) in order to explore different paths, wherein path exploration comprises sending messages to remote client nodes (20), and receiving messages from said remote clients (20); wherein said received messages do not reveal checkpoints of said other nodes, so as to avoid leakage of any confidential information.