See also https://twiki.cern.ch/twiki/bin/view/LCG/WebHome#Working_Groups
WLCG Archival Storage Group
WLCG Network Throughput WG
WLCG Security Working groups
- WLCG Traceability Working Group
- WLCG Authorisation Working Group
- WLCG Federated Operations Security Working Group