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Hardening for cyber security — generated by Stable Diffusion XL v1.0 2024 3 (WBS) 2024 3 — 2024-06 – p.1/17

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https://speakerdeck.com/ks91/collections/cyber-security-2024-summer 2024 3 — 2024-06 – p.2/17

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( 20 ) 1 • 2 • 3 • 4 (TCP/IP ) 5 6 7 8 9 10 World Wide Web 11 Web API 12 13 git GitHub 14 (6/24 ) / (2 ) OK / 2024 3 — 2024-06 – p.3/17

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← ← TCP/IP ← 2024 3 — 2024-06 – p.4/17

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1 : ( ) (65 (0x41)) (97 (0x61)) ASCII (American Standard Code for Information Interchange) 32 (0x20) 2 : CD ( ) ← CD 44.1kHz 16bit 2024 3 — 2024-06 – p.5/17

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→ USB USB (Universal Serial Bus) (bus) → → → 2024 3 — 2024-06 – p.6/17

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2024 3 — 2024-06 – p.7/17

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2024 3 — 2024-06 – p.8/17

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photo by nikoretro 2024 3 — 2024-06 – p.9/17

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Communication 1. The exchange of thoughts, messages, or information, as by speech, signals, writing, or behavior 2. Interpersonal rapport — “The American Heritage Dictionary” . . . 2024 3 — 2024-06 – p.10/17

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2024 3 — 2024-06 – p.11/17

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2024 3 — 2024-06 – p.12/17

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Photo by SLU Madrid Campus 2024 3 — 2024-06 – p.13/17

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2024 3 — 2024-06 – p.14/17

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Protocol 1. the official procedure or system of rules governing affairs of state or diplomatic occasions 2. the original draft of a diplomatic document, especially of the terms of a treaty agreed to in conference and signed by the parties 3. a formal or official record of scientific experimental observations 4. Computing a set of rules governing the exchange or transmission of data between devices — “Oxford Dictionary of English” 2024 3 — 2024-06 – p.15/17

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OSI OSI : Open Systems Interconnection 2024 3 — 2024-06 – p.16/17

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2024 3 — 2024-06 – p.17/17