University Password Policy - University of Staffordshire

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University Password Policy

This policy supports the IT regulations to ensure that passwords used to access computer resources are selected and updated in line with best proactive security standards.

The University IT regulations state that Users must take all necessary steps to protect and maintain the security of any equipment, software, data, storage area and/or passwords allocated for their use. This policy dictates the minimum that a user must do to conform to this requirement when selecting and updating a password.

Password policies are used to mitigate possible attacks against the University IT infrastructure and the data held upon it. Use of long, complex passwords helps to mitigate attacks that attempt to guess passwords, and regular password changes to mitigate long term exploitation of any disclosed or discovered passwords.

Password selection

To protect University systems and data, users must select a password that is secure and difficult to
guess.
In accordance with security best practice the following rules are mandatory:

All passwords should have a minimum of eight characters.
Each password must contain a combination of at least three out of four character sets:
- uppercase characters (A through to Z)
- lowercase characters (a through to z)
- numerical digits (0 through to 9)
- non-alphabetical characters (eg. ! $ # % @ +)
Previous passwords used for a University system must not be re-used.

In addition, while not actively enforced by the password creation process.

Accounts created for use on external online resources must not use the same password for
University authentication.
Passwords must not be something that can easily by guessed (avoid using your name,
children or a pet’s name, car registration number, football team, etc).

See Appendix A for a complete list of enforced password settings.

Changing a password

Passwords must be changed regularly to mitigate the long term exploitation of any disclosed or
discovered passwords. It is recommended those passwords are changed every 60 days. It is
mandatory that University passwords are changed based on the category of user as follows:

Student account passwords must be changed every 455 days
Standard staff account passwords must be changed every 365 days
Staff with access to key systems must change their password every 90 days

See Appendix A for a complete list of enforced password settings.

Password use

Passwords are the mechanism used to protect the security of University systems and must be
protected.

Passwords must be kept secret.
Passwords must not be written in a form that others could identify.
Passwords must not be stored electronically in a non-encrypted format.
Passwords must never be shared with others.
Care should be taken to prevent anyone from watching you type your password.

Enforced password settings and rationale

This policy relates to University accounts and is enforced by security settings within the
authentication system. The settings and the rationale for determining them for each category of
user is detailed in the tables below.

Students

	Setting	Rationale
Mimimum password length	8 characters	In line with recommended minimum password sizes, to reduce the risk of dictionary attacks.
Minimum password age	0 days	To allow immediate changing of password following help desk reset.
Maximum password age	455 days	To ensure passwords are changed each academic year, while avoiding potential impact on students at the start of each academic year.
Password history	24 passwords	To prevent the same password from being re-used (Note this is the maximum possible value).
Password Complexity	Enabled	To enforce stronger passwords (three of uppercase, lowercase, numbers, symbols).
Change password at first use	No	Disabled to simplify logon process for distance learners and e-enrolment.
Account lockout	30 minutes automatic Account Lockout after 30 bad passwords	To prevent dictionary attacks without impacting on student

Standard staff

	Setting	Rationale
Minimum password length	8 characters	In line with recommended minimum password sizes, to reduce the risk of dictionary attacks.
Minimum password age	0 days	Allows user to change their password as soon as accounts are created, or after a helpdesk reset.
Maximum password age	365 days	To ensure passwords are changed annually.
Password history	24 passwords	To prevent the same password from being re-used (Note this is the maximum possible value).
Password complexity	Enabled	To enforce stronger passwords (three of uppercase, lowercase, numbers, symbols).
Change password at first use	No	To support wholly offsite users, including partner colleges and external examiners.
Account lockout	30 minutes, automatic Account Lockout after 10 bad passwords	To prevent dictionary attacks.

Staff with access to key systems

	Setting	Rationale
Minimum password length:	8 characters	In line with recommended minimum password sizes, to reduce the risk of dictionary attacks.
Minimum password age	1 days	As per audit recommendation.
Maximum password age	90 days	As per audit recommendation.
Password history	24 passwords	To prevent the same password from being re-used (Note this is the maximum possible value).
Password complexity	Enabled	To enforce stronger passwords (three of uppercase, lowercase, numbers, symbols).
Change password at first use	No	To support wholly offsite users, including partner colleges and external examiners.
Account lockout	30 minutes automatic, Account Lockout after 10 bad passwords	To prevent dictionary attacks.