Service will use techniques used by bad guys to find weaknesses in businesses' machines.
Latest from Tom Espiner
HP: Hacking techniques help security
Two researchers for Hewlett-Packard have created a browser-based darknet, an idea that could make it easier for businesses to keep eavesdroppers from uncovering confidential information.
Technology developed by HP to enable secure communications networks to be set up via a web-browser should not be used by dissidents, HP said