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The First Password on the Internet

ID: 056ba2bb-4444-5de0-8e0b-2b28d6bcf09a

STIX ID: report--056ba2bb-4444-5de0-8e0b-2b28d6bcf09a

Feed Name: Schneier on Security

Date Published: 2025-01-14

Date Updated: 2026-04-19

Author: Bruce Schneier

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Brief historical blog post noting Peter Kirstein’s 1973 deployment of password protection on a UCL ARPANET gateway—likely the network’s first password—and describing accompanying governance measures and the absence of breaches over 15 years; it serves as historical context rather than an incident or threat intelligence report.

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