The web is a terrorist’s command-and-control network of choice

[Commentary] The Islamic State of Iraq and the Levant (Isis) is the first terrorist group whose members have grown up on the internet. They are exploiting the power of the web to create a jihadi threat with near-global reach. The challenge to governments and their intelligence agencies is huge -- and it can only be met with greater co-operation from technology companies.

These companies have become the command-and-control networks of choice for terrorists and criminals, who find their services as transformational as the rest of us. If they are to meet this challenge, it means coming up with better arrangements for facilitating lawful investigation by security and law enforcement agencies than we have now. As we celebrate the 25th anniversary of the spectacular creation that is the world wide web, we need a new deal between democratic governments and the technology companies in the area of protecting our citizens. It should be a deal rooted in the democratic values we share. That means addressing some uncomfortable truths. Better to do it now than in the aftermath of greater violence.

[Hannigan is the director of GCHQ, a UK government intelligence and security organization]