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HIPAA COW
ADMINISTRATIVE WORKGROUP POLICY/PROCEDURE
SECURITY INCIDENT RESPONSE POLICY
Disclaimer
This document is Copyright  2005 by the HIPAA Collaborative of Wisconsin (“HIPAA COW”).
It may be freely redistributed in its entirety provided that this copyright notice is not removed. It
may not be sold for profit or used in commercial documents without the written permission of the
copyright holder. This document is provided “as is” without any express or implied warranty. This
document is for educational purposes only and does not constitute legal advice. If you require legal
advice, you should consult with an attorney. HIPAA COW has not yet addressed all state preemption issues related to this document. Therefore, this may need to be modified in order to comply
with Wisconsin law.
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Table of Contents
Policy …………………………………………………………………………………………….2
Responsible for Implementation ................................................................................................... 2
Applicable To ……………………………………………………………………………………3
Purpose …………………………………………………………………………………………..3
Scope …………………………………………………………………………………………….3
Key Definitions ………………………………………………………………………………….3
Procedures ..................................................................................................................................... 5
1. Identification Phase ........................................................................................................... 5
2. Containment Phase............................................................................................................ 7
3. Eradication Phase .............................................................................................................. 8
4. Recovery Phase ................................................................................................................. 8
5. Follow Up Phase ............................................................................................................... 8
6. Retention ........................................................................................................................... 9
Authors .......................................................................................................................................... 9
Attachments to Policy: .................................................................................................................. 9
Reviewed By ................................................................................................................................. 9
Applicable Standards and Regulations ………………………………………………….……. .. 10
Sources …………………………………………………………………………………………..10
Appendix 1: Security Incidents Response Flow ........................................................................... 11
Appendix 2: Sample Information Security Incident Report Form …………………….……….. 12
Appendix 3: Chain of Custody ..................................................................................................... 14
Appendix 4: SANS Sample Incident Handling Forms ................................................................. 15
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Policy:
An information security incident response process is implemented to consistently detect,
respond, and report incidents, minimize loss and destruction, mitigate the weaknesses that were
exploited, and restore information system functionality and business continuity as soon as
possible.
This policy has been developed to address the HIPAA Security Rule standard for security
incident procedures [§ 164.308(a)(6)].
It is the policy of <Organization> to safeguard the confidentiality, integrity, and availability of
operational and patient protected health information through an established information security
incident response process. The information security incident response process addresses:
 Continuous monitoring of threats through intrusion detection systems (IDS) and other
monitoring applications;
 Establishment of an information security incident response team;
 Establishment of procedures to respond to media inquiries;
 Establishment of clear procedures for identifying, responding, assessing, analyzing, and
follow-up of information security incidents;
 Workforce training, education, and awareness on information security incidents and
required responses; and
 Facilitation of clear communication of information security incidents with internal, as
well as external, stakeholders
Responsible for Implementation:
Individuals needed and responsible to respond to a security incident make up a Security Incident
Response Team (SIRT). Refer to NIST 800-61 for recommendations of how to develop a SIRT;
the link to this document may be found on the HIPAA COW website at
http://www.hipaacow.org/Home/links.aspx. Members may include the following:
 HIPAA Security Officer
 HIPAA Privacy Officer
 Senior Management
 Information Systems Staff
 Security Team Staff
 Building and/or Facilities Management Staff
 Refer to Appendix 4 for a Incident Contact List form provided by SANS
Other Individuals which may be needed include representation from:
 Public Affairs
 Legal/Compliance Department
 Internal Audit/Risk Management
 Other workforce members involved in the incident or needed to fix/resolve it.
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
Contractors (as necessary)
Applicable To:
All workforce members/staff, departments, contractors and business partners of [Organization]
must adhere to the Security Incident Response Policy.
Violation of this policy and its procedures by workforce members may result in corrective
disciplinary action, up to and including termination of employment. Violation of this policy and
procedures by others, including providers, providers' offices, business associates and partners
may result in termination of the relationship and/or associated privileges. Violation may also
result in civil and criminal penalties as determined by federal and state laws and regulations.
Purpose:
The purpose of this policy is to establish guidelines for the identification, response, reporting,
assessment, analysis, and follow-up to information security incidents.
Scope:
This policy applies to the following security incidents:
 Technical security incidents (e.g., computer intrusions, denial of service to authorized
users, etc.)
 Non-technical security incidents (e.g., administrative and physical incidents including,
but not limited to theft, unlocked doors, unauthorized facility entry, unauthorized
computer access, etc.)
Key Definitions:
Electronic Protected Health Information (ePHI): Any individually identifiable health
information protected by HIPAA that is transmitted by or stored in electronic media.
Event: An event is defined as an occurrence that does not constitute a serious adverse effect on
the organization or its operations, though it may be less than optimal. Examples of events
include, but are not limited to:
 A hard drive malfunction that requires replacement
 Systems become unavailable due to power outage that is non-hostile in nature
 Accidental lockout of an account due to incorrectly entering a password multiple times
 Network or system instability
Indication: A sign that an incident may have occurred or may be occurring at the present time.
Examples of indications include:
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





The network intrusion detection sensor alerts when a known exploit occurs against an
FTP server. Intrusion detection is generally reactive, looking only for footprints of
known attacks. It is important to note that many IDS “hits” are also false positives and
are neither an event nor an incident.
The antivirus software alerts when it detects that a host is infected with a worm.
The Web server crashes.
Users complain of slow access to hosts on the Internet.
The system administrator sees a filename with unusual characteristics.
The user calls the help desk to report a threatening e-mail message (and it is determined
by Information Services that it is a legitimate risk issue).
Precursor: A sign that an incident may occur in the future. Examples of precursors include:
 Suspicious network and host-based IDS events/attacks.
 Alerts as a result of detecting malicious code at the network and host levels.
 Alerts from file integrity checking software.
 Alerts from third party monitoring services.
 Audit log alerts.
Security Incident: A security incident is an occurrence that exercises a significant adverse effect
on people, process, technology, data or facilities. Security incidents include, but are not limited
to:
 A system or network breach accomplished by an internal or external entity; this breach
can be inadvertent or malicious
 Unauthorized disclosure
 Unauthorized change or destruction of ePHI (i.e. delete dictation, data alterations not
following <ORGANIZATION’S> procedures)
 Denial of service not attributable to identifiable physical, environmental, human or
technology causes
 Physical threat to staff members or external entities at the site
 Biological threat to staff members or external entities at the site (e.g., bioterrorism
attacks, such as those conducted through use of toxins such as anthrax)
 Disaster or enacted threat to business continuity
 Information Security Incident1: A violation or imminent threat of violation of
information security policies, acceptable use policies, or standard security practices.
Examples of information security incidents may include, but are not limited to, the
following:
 Denial of Service: An attack that prevents or impairs the authorized use of
networks, systems, or applications by exhausting resources.
1
Definition based on NIST 800-61; HIPAA Security Rule - Security incident means the attempted or successful
unauthorized access, use, disclosure, modification, or destruction of information or interference with system operations in an
information system (164.304).
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

Malicious Code: A virus, worm, Trojan horse, or other code-based malicious
entity that infects a host.
 Unauthorized Access/System Hijacking: A person gains logical or physical
access without permission to a network, system, application, data, or other
resource. Hijacking occurs when an attacker takes control of network devices or
workstations.
 Inappropriate Usage: A person violates acceptable computing use policies.
 Unplanned Downtime: The network, system, and/or applications are not
accessible due to any unexplainable circumstance causing downtime (e.g., system
failure, utility failure, disaster situation, etc.).
 Multiple Component: A single incident that encompasses two or more incidents
(e.g., a malicious code infection leads to unauthorized access to a host, which is
then used to gain unauthorized access to additional hosts).
Other examples of observable information security incidents may include, but are not
limited to:
 Use of another person’s individual password and/or account to login to a system.
 Failure to protect passwords and/or access codes (e.g., posting passwords on
equipment).
 Leaving workstations unattended while actively signed on.
 Installation of unauthorized software.
 Falsification of information.
 Theft of equipment or software.
 Destruction of tampering with equipment or software.
 Posting of PHI on the Internet from a web portal.
 Discarding of PC hard drives, CDs or other devices including PHI without
following approved destruction/disposal guidelines.
 Terminated workforce member accessing applications, systems, or network.
Procedures
The security incident response process that follows reflects the process recommended by SANS,
an industry leader in security (www.sans.org). Process flows are a direct representation of the
SANS process. Review Appendix 1 for a flowchart identifying each phase.
1) Identification Phase:
A) Immediately upon observation workforce members report suspected and known
precursors, events, indications, and security incidents in one of the following ways (note:
each organization needs to define how these need to be reported that best suits the
organization’s infrastructure):
i) Report through technical means, such as an Information Services Help Desk.
ii) Direct report to management, the HIPAA Security Officer, Privacy Officer, or other.
iii) Email.
iv) Phone call.
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B) The individual receiving the report facilitates completion of an Incident Identification
form (refer to Appendix 4) and notifies the HIPAA Security Officer (if not already done).
C) Working with the Media: Certain types of information security incidents may generate
the attention of the news media. The organization may also choose initiate contact with
the news media in certain circumstances. The organization’s designated media relations
contact should serve as the liaison between the organization and the news media. In the
absence of a media relations contact person, administration designates a media relations
contact or seek assistance from the corporate office in working with the news media. The
media relations contact can serve as a single point of contact for the news media, which
eliminates the need to involve the SIRT members and leaves them free to manage the
security incident. The IS leader or a member of the SIRT should be prepared to share
information with the media relations contact. Key Considerations When Working With
the Media Relations Contact/News Media:
i) Contact the organization’s legal counsel if unsure of legal issues.
ii) Establish a single point of contact (media relations contact) when working with the
news media to ensure that all inquiries and statements are coordinated.
iii) Keep the level of technical detail very low – do not provide attackers with
information.
iv) Be as accurate as possible.
v) Do not speculate.
vi) Ensure that any details about the incident that may be used as evidence are not
disclosed without the approval of investigative agencies.
D) The HIPAA Security Officer determines if the issue is a precursor, incident, event, or
security incident.
i) If the issue is an event, indication, or precursor the HIPAA Security Officer forwards
it to the appropriate resource for resolution.
(1) Physical Intrusion: Facilities manager and law enforcement (if necessary for
protection).
(2) Non-Technical Event (minor infringement): the HIPAA Security Officer
completes a SIR Form (see Appendix 2) and investigates the incident.
(3) Technical Event: Assign the issue to an IS resource for resolution. This resource
may also be a contractor or outsourced technical resource, in the event of a small
office or lack of expertise in the area.
ii) If the issue is a security incident the HIPAA Security Officer activates the Security
Incident Response Team (SIRT) (review the list of individuals at the beginning of this
policy to identify potential team members) and notifies senior management.
Notification may be made on an Incident Communication Log (refer to Appendix 4).
(1) If a non-technical security incident is discovered the SIRT completes the
investigation, implements preventative measures, and resolves the security
incident.
(a) Once the investigation is completed, progress to Phase V, Follow-up.
(2) If the issue is a technical security incident, commence to Phase II: Containment.
Note: If there is no internal expertise to assist with security incident response (i.e.,
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a small office), request an outside vendor to assist with the technical work.
Identify potential partners for this work prior to discovery of a security incident.
Technical resources can be identified from www.sans.org, www.foundstone.com,
www.securityfocus.com, or other sites.
(a) The Containment, Eradication, and Recovery Phases are highly technical. It is
important to have them completed by a highly qualified technical security
resource with oversight by the SIRT team.
(b) Each individual on the SIRT and the technical security resource document all
measures taken during each phase, including the start and end times of all
efforts.
(c) The lead member of the SIRT team facilitates initiation of a Security Incident
Report (SIR) Form (See Appendix 2 for sample format) or an Incident Survey
Form (See Appendix 4). The intent of the SIR form is to provide a summary
of all events, efforts, and conclusions of each Phase of this policy and
procedures.
2) Containment Phase (Technical): In this Phase, <ORGANIZATION’S> information
services department (or IT consultant) attempts to contain the security incident. It is
extremely important to take detailed notes during the security incident response process,
including the use of appropriate Chain of Custody procedures (See Appendix 3). This
provides that the evidence gathered during the security incident can be used successfully
during prosecution, if appropriate.
A) The SIRT reviews any information that has been collected by the HIPAA Security
Officer or any other individual investigating the security incident.
B) The SIRT secures the physical and network perimeter.
C) The Information Services department performs the following:
i) Load a trusted shell.
ii) Retrieve any volatile data from the affected system.
iii) Determine the relative integrity and the appropriateness of backing the system up.
iv) If appropriate, back up the system.
v) Change the password(s) to the affected system(s).
vi) Determine whether it is safe to continue operations with the affect system(s).
(1) If it is safe, allow the system to continue to function;
(a) Complete any documentation relative to the security incident on the SIR
Form.
(b) Move to Phase V, Follow-up.
(2) If it is NOT safe to allow the system to continue operations, discontinue the
system(s) operation and move to Phase III, Eradication.
vii) The individual completing this phase provides written communication to the SIRT on
the SIR Form or the Incident Containment form (See Appendix 4).
D) Continuously apprise Senior Management of progress.
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3) Eradication Phase (Technical): The Eradication Phase represents the SIRT’s effort to
remove the cause, and the resulting security exposures, that are now on the affected
system(s).
A) Determine symptoms and cause related to the affected system(s).
B) Strengthen the defenses surrounding the affected system(s), where possible (a risk
assessment may be needed). This may include the following:
i) An increase in network perimeter defenses.
ii) An increase in system monitoring defenses.
iii) Remediation (“fixing”) any security issues within the affected system, such as
removing unused services/general host hardening techniques.
iv) Others.
C) Conduct a detailed vulnerability assessment to verify all the holes/gaps that can be
exploited have been addressed.
i) If additional issues or symptoms are identified, take appropriate preventative
measures to eliminate or minimize potential future compromises.
D) Complete the Eradication Form (see Appendix 4)
E) Update the SIR Form with the information learned from the vulnerability assessment,
including the cause, symptoms, and the method used to fix the problem with the affected
system(s).
F) Apprise Senior Management of the progress.
G) Move to Phase IV, Recovery.
4) Recovery Phase (Technical): The Recovery Phase represents the SIRT’s effort to restore the
affected system(s) back to operation after the resulting security exposures, if any, have been
corrected.
A) The technical team determines if the affected system(s) have been changed in any way.
i) If they have, the technical team restores the system to its proper, intended functioning
(“last known good”).
(1) Once restored, the team validates that the system functions the way it was
intended/had functioned in the past. This may require the involvement of the
business unit that owns the affected system(s).
(2) If operation of the system(s) had been interrupted (i.e., the system(s) had been
taken offline or dropped from the network while triaged), restart the restored and
validated system(s) and monitor for behavior.
ii) If the system had not been changed in any way, but was taken offline (i.e., operations
had been interrupted), restart the system and monitor for proper behavior.
B) Update the SIR Form with the detail that was determined during this phase.
C) Apprise Senior Management of progress.
D) Move to Phase V, Follow-up.
5) Follow-up Phase (Technical and Non-Technical): The Follow-up Phase represents the
review of the security incident to look for “lessons learned” and to determine whether the
process that was taken could have been improved in any way. It is recommended all security
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incidents be reviewed shortly after resolution to determine where response could be
improved. Timeframes may extend to one to two weeks post-incident.
A) Responders to the security incident (SIRT Team and technical security resource) meet to
review the documentation collected during the security incident.
i) Create a “lessons learned” document and attach it to the completed SIR Form.
ii) Evaluate the cost and impact of the security incident to the organization using the
documents provided by the SIRT and the technical security resource.
iii) Determine what could be improved.
iv) Communicate these findings to Senior Management for approval and for
implementation of any recommendations made post-review of the security incident.
v) Carry out recommendations approved by Senior Management; sufficient budget, time
and resources should be committed to this activity.
vi) Close the security incident.
B) Periodic Evaluation: It is important to note that the processes surrounding security
incident response should be periodically reviewed and evaluated for effectiveness. This
also involves appropriate training of resources expected to respond to security incidents,
as well as the training of the general population regarding the organization’s expectation
for them, relative to security responsibilities.
6) Retention of Security Incident Documentation: Maintain all documentation surrounding
every security incident, to include all work papers, notes, incident response forms, meeting
minutes and other items relevant to the investigation in a secure location for a period of six
(6) years
Authors:

HIPAA COW Administrative Workgroup
Attachments to Policy:
Appendix 1:
Appendix 2:
Appendix 3:
Appendix 4:
Security Incident Response Flow
Sample Incident Security Incident Response Form
Chain of Custody Procedures
SANS Sample Incident Handling Forms
Reviewed By:



HIPAA COW Physical Security Workgroup
HIPAA COW Privacy Policy & Procedure Workgroup
HIPAA COW Technical Security Workgroup
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Applicable Standards/Regulations:

45 CFR §164.308(a)(1) – HIPAA Security Rule Information System Activity Review
Sources:
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SANS (SysAdmin, Audit, Network, Security) Institute, Sample Incident Handling Forms,
http://www.sans.org
“Security Incident Response,” HIPAA COW Presentation, Eric Sinclair, CISSP, Information
Security Specialist, United Government Services, September, 2004
NIST Computer Security Incident Handling Guide, Special Publication 800-61
Incident Response: Investigating Computer Crime, Kevin Mania and Chris Prosise,
Foundstone
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APPENDIX 1: SECURITY INCIDENT RESPONSE FLOW
Report of an issue is
received
Is it a Security
Incident?
Y es
Assign Security Incident to
Security Officer
No
Is it a
Precursor,
Indication, or
Event?
Commence Security
Incident Response Process
Y es
Forward to the appropriate
resource for resolution
Technical Phase 2
Containment Phase
No
Develop Problem Solution
End Issue
If technical, assign
Deployment to IS resource
End Issue
Technical Phase 3
Eradication Phase
Technical Phase 4
Recovery Phase
Technical Phase 5
Follow Up Phase
Close
Security Incident
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APPENDIX 2: SAMPLE INFORMATION SECURITY INCIDENT REPORT FORM
INCIDENT IDENTIFICATION INFORMATION2
Incident Detector’s Information:
Name:
Title:
Phone/Contact Info:
Date/Time Detected:
Location:
System/Application:
INCIDENT SUMMARY
Type of Incident Detected:
 Denial of Service
 Unauthorized Access


Malicious Code
Unplanned
Downtime


Unauthorized Use/Disclosure
Other:
Description of Incident:
Names of Others Involved:
INCIDENT NOTIFICATION





IS Leadership
Security Incident Response Team
Administration
Human Resources
Other:




System/Application Owner
System/Application Vendor
Public Affairs
Legal Counsel
ACTIONS (Include Start & Stop Times)
Identification Measures (Incident Verified, Assessed, Options Evaluated):
Containment Measures:
Evidence Collected (Systems Logs, etc.):
2
This form has been developed as a working tool for assessment and improvement activities; it is intended for
internal use only
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Eradication Measures:
Recovery Measures
EVALUATION
How Well Did the Workforce Members Respond?
Were the Documented Procedures Followed? Were They Adequate?
What Information Was Needed Sooner?
Were Any Steps or Actions Taken That Might Have Inhibited the Recovery?
What Could the Workforce Members Do Differently the Next Time an Incident Occurs?
What Corrective Actions Can Prevent Similar Incidents in the Future?
What Additional Resources Are Needed to Detect, Analyze, and Mitigate Future Incidents?
Other Conclusions/Recommendations:
FOLLOW-UP
Review By (Organization to
 Security Officer
determine):
 Other:
Recommended Actions Carried Out:

IS Department/Team
Initial Report Completed By:
Follow-Up Completed By:
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APPENDIX 3: CHAIN OF CUSTODY PROCEDURES
The Chain of Custody procedure that follows quotes the process detailed in Incident Response:
Investigating Computer Crime by Kevin Mania and Chris Prosise, Foundstone, an industry
leader in security.
Create an evidence tag for each piece of evidence gained during the security incident, as follows:
Tag front:
 The time and date of the action
 The number assigned to the case
 The number of the particular evidence tag
 Whether consent is required and the signature of the person who owns the information
being seized
 Who the evidence belonged to before the seizure, or who provided the information
 A complete description of the evidence
Back of the evidence tag:
 Who the evidence was received from
 The date of receipt
 The reason the evidence was given to another person
 Who received the evidence and where it was received and subsequently located to
 The individuals occupying the office
 The names of employees that may have access to the office
 The location of the computer systems in the room
 The state of the system (whether it was powered on, and what is visible on the screen
 Network connections or modem connections
 The people present at the time forensic duplication was performed
 The serial numbers, models and makes of the hard drives and the components of the
system
 The peripherals attached to the system
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APPENDIX 4: SANS SAMPLE INCIDENT HANDLING FORMS
1. Incident Contact List
2. Incident Identification
3. Incident Survey
4. Incident Containment
5. Incident Eradication
6. Incident Communication Log
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