Speaker
            
    David Kelsey
        
            (RAL)
        
    Description
The aim of Grid computing is to enable the easy and open sharing of resources 
between large and highly distributed communities of scientists and institutes across 
many independent administrative domains. Convincing site security officers and 
computer centre managers to allow this to happen in view of today's ever-increasing 
Internet security problems is a major challenge. Convincing users and application 
developers to take security seriously is equally difficult. This paper will describe 
the main Grid security issues, both in terms of technology and policy, that have 
been tackled over recent years in LCG and related Grid projects. Achievements to 
date will be described and opportunities for future improvements will be addressed.
            