Its the Telcos job to prevent such actions. Perhaps a very sensitive detection mechanism if there is an abuse on the bandwidht used by a subscriber.. VPNs are not illegal and it should be highly unlikely that VPNs works to exploit how the telco authenticates or provisions Internet access to the subscriber.. In simplest sense, Telcos could never really patch the holes. They're stuck with us filipinos .. we are just soo creative in finding ways in getting around things.. These companies cant even make a bulletproof network and system infrastracture to help improve their services .. security pa kaha? sounds like free Internet will always be here.