This presentation will focus on advanced phreaking techniques for the 21st century warrior. After a short presentation of current digital telecommunications network (with a focus on GSM/GPRS/EDGE and CDMA/3G) we will study how each element can be compromised for fun and profit. Nothing will be left untouched: . Core Switching . Radio Networks . GPRS infrastructure . 3G data . Messaging (SMS, MMS, voicemail, USSD) . Roaming, subscriber management platforms . Fraud management . Customer care systems . Billing systems . Mediation systems . WAP servers . Intelligent Network services (e.g. prepaid, VPN, conditional forwarding and screening etc.) . Legal interception gateway . Signaling devices . Content aggregators . Network Management Systems We will also partially unveil the phreakers holy grail: Abusing out-of-band signaling by compromising SS7 nodes.