+IA-04(01) Prohibit Account Identifiers as Public Identifiers

IA-04(01) Prohibit Account Identifiers as Public Identifiers

Control

Prohibit the use of system account identifiers that are the same as public identifiers for individual accounts.

Discussion

Prohibiting account identifiers as public identifiers applies to any publicly disclosed account identifier used for communication such as, electronic mail and instant messaging. Prohibiting the use of systems account identifiers that are the same as some public identifier, such as the individual identifier section of an electronic mail address, makes it more difficult for adversaries to guess user identifiers. Prohibiting account identifiers as public identifiers without the implementation of other supporting controls only complicates guessing of identifiers. Additional protections are required for authenticators and credentials to protect the account.

Assessment Objective

the use of system account identifiers that are the same as public identifiers is prohibited for individual accounts.

Assessment Method

Examine

Identification and authentication policy system security plan procedures addressing identifier management procedures addressing account management system design documentation system configuration settings and associated documentation system audit records other relevant documents or records

Interview

Organizational personnel with identifier management responsibilities organizational personnel with information security responsibilities system/network administrators

1. Yleiskatsaus

Otsikko Standardi

1.1 Viittaukset

1.2 Tunnistetut vaatimukset

1.3 Liittyvät säädökset

2. Tunnistetut vaatimukset

Vaatimukset
Lähde Vaatimus

3. Liittyvät säädökset

Säädökset
Lähde Sääntely

Linkitetyt tehtävät

  • NIST -

    EN: Publications of the National Institute of Standards and Technology (NIST), U.S. Department of Commerce, https://www.nist.gov/, from their electronic versions (OSCAL; SP 800-63-4 from its HTML version, https://pages.nist.gov/800-63-4/). Works of NIST employees are not subject to copyright protection in the United States (17 U.S.C. § 105); the OSCAL content is dedicated to the public domain worldwide (CC0 1.0); outside the United States NIST grants the right to reprint its technical series publications in all formats (NIST copyright statement). Republished courtesy of the National Institute of Standards and Technology; each document names its citation. Divided into sections and converted into the GRCA format, the wording unchanged. Only the versions published by NIST are authoritative.

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