+4.2 Account Recovery
---+4.2.1 Account Recovery Methods
------+4.2.1.1 Saved Recovery Codes
------+4.2.1.2 Issued Recovery Codes
------+4.2.1.3 Recovery Contacts
------+4.2.1.4 Repeated Identity Proofing
---+4.2.2 Recovery Requirements by IAL/AAL
------+4.2.2.1 Recovery Without Identity Proofing
------+4.2.2.2 Recovery at AAL2
------+4.2.2.3 Recovery at AAL3
---+4.2.3 Account Recovery Notification

4.2 Account Recovery

Account recovery is when a subscriber recovers from losing control of the authenticators that are needed to authenticate at a desired AAL. This may be accomplished by repeating portions of the identity proofing process, using a prearranged recovery contact, or presenting one or more recovery codes, perhaps in conjunction with using an authenticator that is still available to the subscriber bound to their subscriber account. Once this is completed, the subscriber can bind one or more new authenticators to their subscriber account. An account recovery event always causes one or more notifications to be sent to the subscriber to help detect the fraudulent use of account recovery.

Account recovery differs from authentication in several ways. Since account recovery is expected to be invoked infrequently, it is generally less convenient than authentication and — depending on the situation and recovery methods offered by the CSP — may involve extended waiting times.

Replacement of a forgotten password where the subscriber can authenticate with one or more other authenticators is considered to be the binding of a new authenticator (see Sec. 4.1.2.1) rather than account recovery.

1. Übersicht

Bezeichnung Standard
4.2.1 Account Recovery Methods

Four general classes of account recovery methods are recognized:

Saved recovery codes
Issued recovery codes
Use of recovery contacts
Repeated identity proofing

CSPs SHALL support one or more of these and MAY support an application-specific method (e.g., interaction with a CSP agent) to recover a subscriber account. The use of alternative methods SHALL be based on a risk analysis and documented by the CSP.

4.2.2 Recovery Requirements by IAL/AAL

Different recovery methods apply, depending on the IAL and the maximum AAL associated with the subscriber account.

4.2.3 Account Recovery Notification

In all cases, account recovery SHALL cause a notification to be sent to the subscriber or their designee, as described in Sec. 4.6.

1.1 Referenzen

1.2 Identifizierte Anforderungen

1.3 Zugehörige Regulierungen

2. Identifizierte Anforderungen

Anforderungen
Quelle Anforderung

3. Zugehörige Regulierungen

Regulierungen
Quelle Regulierung
  • 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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