DEF CON 34  ·  Telecom Village  ·  Aug 6–9

Workshop. CTF. Your Own Live 5G Core.

Know the attack. Know what to defend. See cellular networks through an attacker's eyes — from 2G to 5G SA. Then prove it in a live CTF: access subscriber data, extract authentication keys, and enumerate an Open5GS core. Free. No prior experience needed.

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Free  ·  Email sign-in, no password  ·  60 seconds
Your email is only used to send your sign-in code and to contact you if you win a prize. Disposable addresses fine — mail.tm, temp-mail.org stay active several days.
5
Real attack paths
900
Total points
60s
To your WG config
13
Network Functions. Your own. NRF · UDR · UDM · AMF · SMF · PCF · NSSF + more — live Open5GS 5G SA core
CTF
Hack a live 5G core. Find the flags.
1 2 3 4 5 5 challenges · 900 pts · MITRE FiGHT mapped
NRF Enumeration Credential Theft Slice Census Ghost Session Subscriber Harvest
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Workshop
Learn to hack. No experience needed.
Cellular basics → 5G architecture → Live CTF
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Prizes
🍓 Raspberry Pis
Top scorers on the leaderboard. Winners contacted by email.
player@jumpbox — wg0: 10.99.x.x — your dedicated 5G core
$ wg show wg0 endpoint: wg.telcobreak.com:51820 latest handshake: 3 seconds ago transfer: 1.2 KiB received, 892 B sent $ ssh -i player_key player@10.100.0.x Welcome to TelcoBreak CTF · DEF CON 34 5G SA core running · 13 NFs active player@jumpbox:~$ ▋
Core endpoints (HTTP/2): NRF http://10.100.200.20:7777 UDR http://10.100.200.50:7777 WebUI http://10.100.200.200:3000 CTF — 5 challenges · 900 pts: CH1 Service Catalog 100 pts CH2 Credential Theft 200 pts CH3 Slice Census 150 pts CH4 Ghost Session 200 pts CH5 Subscriber Harvest 250 pts
DEF CON 34 Aug 6–9, 2026 · Las Vegas, NV
Telecom Village LVCC West Hall · 3150 Paradise Rd
Free to enter Workshop + CTF included
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