The Forgotten Story of Hacking Phones (and Why Modern Systems are Still Vulnerable)

A single tone once gave hackers root access to the global phone network — a design flaw that still echoes in today’s systems.
This is the forgotten story of the birth of modern hacking — and what it should have taught us about design and trust (but didn't).

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Topics & keywords (for discoverability)
phone phreaking, blue box, red box, black box, green box, gold box, 2600 Hz, DTMF, MF signaling, Strowger switch, Almon Strowger, operator switchboard, SS7, in-band vs out-of-band signaling, XSS, cross-site scripting, CSP, Trusted Types, prompt injection, agent security, confused deputy, LLM safety, software architecture, security through obscurity, tech history, hacking, whitehat, cybersecurity, geek nostalgia

Hashtags
#PhonePhreaking #Security #SoftwareArchitecture #LLM #PromptInjection #XSS #CyberSecurity #TechHistory #DevRandom