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What are the security implications of sharing a MAC address online? How important is it really, to redact this information; and why?
I see it a lot, and I'm in the habit of doing it myself.
1. Censored images
Redacted and obscured images, PDFs, diagrams, blurred & pixelated screenshots & photographs.
2. Obfuscated plaintext
I've obfuscated individual characters with arbitrary symbols, like
3. Masked plaintext
I've masked them with functional, yet obvious substitutes, like
A1:B2:C3:D4:E5:F6. And some not so obvious, randomly generated, hex-encoded, colon delimited, binary octets.