The 99 Lines of Code That Broke the World : The Morris Worm
In November 1988, the early internet suffered its first massive blackout. It wasn't a nation-state attack or a coordinated cyber warfare campaign. It was a 23-year-old PhD student who made a single, fatal math error.
This video breaks down the Morris Worm—how it used a buffer overflow in fingerd to gain root access, the three specific attack vectors it deployed, and why the creator intentionally launched it from MIT to cover his tracks.
More importantly, we decode the foundational mechanics of this vulnerability to show why, almost 40 years later, the tech industry is still making the exact same mistake. We look at the actual data behind modern zero-day exploits, why legacy code in C and C++ keeps our infrastructure vulnerable, and how the ownership model in memory-safe languages like Rust actively prevents the exact flaw that brought down the 1988 internet.
Sources & Technical Reading:
Microsoft Security Response Center 70% Memory Safety Report: https://www.microsoft.com/en-us/msrc/...
Google Chromium Memory Safety Data: https://www.chromium.org/Home/chromiu...
NSA & CISA Advisory on Memory Safe Languages: https://www.nsa.gov/Press-Room/Press-...
United States v. Morris (The original CFAA court ruling): https://sites.suffolk.edu/jhtl/2025/1...
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