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Page 110 of the DSE Cybersecurity knowledge center, with source-backed guidance and practical next steps.

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Cybersecurity

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DSE visual briefContinuity & recovery

Identify devices, data, applications, and vulnerabilities before a destructive data event

NIST SP 1800-25 treats devices, data, and applications as assets that can become targets of data-integrity attacks. Its example solution combines asset identification and protection methods including backups, secure storage, integrity checks, logs, and vulnerability management.

Published Reviewed 3 min readBy DSE Security Editorial Team
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DSE visual briefContinuity & recovery

Keep system plans current with control status and named responsibilities

NIST SP 800-18 Rev. 2 collectively calls the system security, privacy, and C-SCRM plans 'system plans.'. NIST says those plans describe system purpose, control operational status, and responsibilities and expected behavior of people who manage, support, and access the system.

Published Reviewed 3 min readBy DSE Security Editorial Team
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DSE visual briefCyber defense

Prioritize cyber risks by enterprise impact before selecting a response

NIST IR 8286B describes prioritizing identified cybersecurity risks by their potential impact on enterprise objectives. It describes adding priority and response information to a cybersecurity risk register in support of an enterprise risk register.

Published Reviewed 3 min readBy DSE Security Editorial Team
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DSE visual briefContinuity & recovery

Set fire and EMS devolution and reconstitution triggers before resources run short

Fire and EMS devolution planning determines the essential minimum service level and how service delivery changes when resources no longer meet community need. The plan should identify trigger points for altering services and separate triggers and phasing for reconstituting those services.

Published Reviewed 3 min readBy DSE Security Editorial Team
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DSE visual briefContinuity & recovery

Write delegation activation, termination, limits, and redelegation into the authority instrument

A delegation of authority should state the circumstances in which delegated authority becomes effective and when it terminates. The instrument should delineate limits and accountability and state whether a successor may redelegate functions and activities.

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DSE visual briefNetworks & infrastructure

Apply DNAME substitution below an owner without aliasing the owner itself

DNAME substitution replaces only the whole suffix labels that match the DNAME owner with the labels in the DNAME target. A DNAME redirects names below its owner; unlike a CNAME, it does not redirect the DNAME owner name itself.

Published Reviewed 3 min readBy DSE Security Editorial Team
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DSE visual briefNetworks & infrastructure

Apply the IDNA bidirectional rule before accepting right-to-left labels

An IDNA label passes the Bidi Rule only if all six conditions in the rule are satisfied. The first character determines direction: R or AL makes an RTL label, while L makes an LTR label. An RTL label cannot contain both European-number and Arabic-number Bidi properties.

Published Reviewed 3 min readBy DSE Security Editorial Team
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