Common Computer Security Hazards

Hazard

What we at Duke can do about it

Shared passwords

Educate our community that sharing is inappropriate and potentially dangerous. One person per account.

As alternative to shared accounts for e-mail, encourage the use of mail distribution lists and/or departmental (shared) mailboxes.

Use RACF or AFS ACLs to allow multiple user access to files.

Use "groupware" (such as Lotus Notes or calendar software) for other collaboration of workflow.

Sniffers

Use hardware encryption.

Use software encryption.

Install switched port hubs.

Distribute secure tools (ssh, etc.) and encourage their use.

Password carelessness

Educate our community. Publicize good techniques (@=A, $=S, etc.) and avoidance of common/guess-able passwords.

Institute password rules (force change at initial logon, force change every N days, disallow password reuse)

Unattended workstations

Educate our community.

Use logoff timeouts, locking screen savers

Insecure workstations

Educate our community.

Use kerberos authentication on public PCs and Macs

Too many IDs/passwords

Educate our community. Encourage routine system-wide password changes.

Implement a single sign-on system.

Impersonation and forgery

Educate our community.

Require authentication at workstation.

SMTP connections accepted only from authenticated stations.

Passwords stored in files

Educate our community about proper configuration of applications (e.g.: Eudora) and login scripts.

Laptop computers (theft and improper use)

Educate our community.

The World Wide Web

Use secure servers, SSL

File insecurity

Educate our community.

Use RACF and extended file protection features of AFS. Keep definitions/ACLs as simple as possible.

Use suitable backup strategies.

Viruses and hoaxes

Educate our community.

Use anti-virus software.