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Access Management ?& ITIL V3

Service Operation

Access Management

The process for granting authorized users the right to use a Service while preventing access to non-authorized users.

Terminology of Access Management

Access Management – Activities

Requesting Access

Access (or restriction) can be requested using one of any number of mechanisms e.g.

Standard request generated by the HR system – when a person is hired, fired or promoted etc

RFC

Service Request submitted via the Request Fulfillment system

Executing a pre-authorized script or option.

Rules for requesting access are normally documented as part

of the Service Catalogue.

Verification

Each request for access should be verified by checking:

The user requesting access is who they say they are e.g. by providing their username and password.

That they have legitimate requirements for that service. This requires some independent verification e.g. notification from HR, authorization from an appropriate manager, submission of an RFC, policy stating that the user may have access to an optional service if they need it.

Providing Rights

Access Management does not decide who has access to

which IT service. It executes the policies and regulations

defined during Service Strategy and Service Design and

enforces decision to restrict or provide access, rather than

making the decision.

As soon as the user is verified, they are provided with the user

rights for the requested service.

Monitoring identity status

As users work in the organization, their roles change and so

also do their needs to access services. E.g.

Job Changes

Promotions or demotions

Transfers

Resignation or death

Retirement

Disciplinary action

Dismissals

Logging & tracking access

Access Management not only responds to requests, but is also

responsible for ensuring that the rights provided are being

properly used.

Information Security Management plays an important role in

detecting unauthorized access and comparing it with the rights

that were provided by Access Management.

Removing or restricting rights

Access Management is also responsible for revoking rights to

use a service. It executes decisions and policies made during

the design phase and also decisions made by managers in the

organization. Removing access is normally done for the

following reasons:

Death

Resignation

Dismissal

User changes roles

User transfers or travels to an area where different regional

access applies.

Inputs & Outputs

Access Management is triggered by a request for a user(s) to

access a service(s). This could originate from any of the

following areas:

RFC

Service Request

Human Resources Management

Manager of a department

Information Management

Identity of users, includes information about them that distinguishes

them as an individual and verifies their status e.g.

Name

Address

Contact information

Physical documentation

Employee number

Tax number

Drivers license number etc

Fingerprints

Retinal images

Voice recognition patterns

DNA

Metrics

Metrics that can be used to measure the effectiveness and

efficiency of the Access Management process are:

Number of requests for access (e.g. Service Requests, RFC’s)

Instances of access granted, by service, user and department etc

Instances of access granted by department or individual granting rights

Number of incidents requiring a rest of access rights

Number of incidents caused by incorrect access settings.

Challenges

Ability to:

Verify the identity of users

Verify the identity of the approving person or body

Verify that a user qualifies for access to a specific service

Link multiple access rights to a user

Determine status of a user at any time

Manage changes to a user’s access requirements

Restrict access rights to unauthorized users

And develop and maintain a database of all users

and the rights they have been granted.

Value to business

Access Management provides the following value:

Controlled access to services ensures that the organization is able to maintain more effectively the confidentiality of its information.

Employees have the right level of access to execute their jobs effectively.

Less likelihood of errors being made in data entry or in the use of a critical service by an unskilled user.

Ability to audit use of services and to trace the abuse of services

Ability to more easily revoke access rights when needed

Could be needed for regulatory compliance (e.g. COBIT, SOX etc).

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