Counterpane offered a range of managed security services including vulnerability scanning, security device monitoring, incident response, and consulting.
Their core offering was Managed Security Monitoring, in which Counterpane analysts proactively monitored and responded to security threats on customer networks remotely and 24/7.
[1] This outsourced approach aimed to improve enterprise security operations.
The company was founded by American cryptographer Bruce Schneier in August 1999.
BT Counterpane is the world's biggest network data security company.