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204 articles
DSE visual briefNetworks & infrastructure

Accept new fiber with both Tier 1 loss evidence and Tier 2 event evidence

Tier 1 OLTS testing proves total insertion loss, length, and polarity against the selected limit. Tier 2 OTDR testing adds event location, loss, and reflectance. Specify both where needed, test correctly, and receive native traces—not just a pass/fail PDF.

Published Reviewed 4 min readBy DSE Security Editorial Team
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DSE visual briefCyber defense
PlaybookImportantCybersecurity

Assess whether controls produce the intended outcome—not whether they exist

A policy, screenshot, or enabled setting proves only part of a control. Build assessment procedures around what must be examined, interviewed, and tested, then record whether implementation is correct, operating as intended, and producing the required outcome.

Published Reviewed 3 min readBy DSE Security Editorial Team
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