McAfee GUARD DOG 2 User manual

McAfee Guard Dog
User’s Guide

COPYRIGHT
Copyright © 1999 Network Associates, Inc. and its Affiliated Companies. All Rights Reserved.
No part of this publication may be reproduced, transmitted, transcribed, stored in a retrieval
system, or translated into any language in any form or by any means without the written
permission of Network Associates, Inc.
LICENSE AGREEMENT
NOTICE TO ALL USERS: CAREFULLY READ THE FOLLOWING LEGAL AGREEMENT
("AGREEMENT"), FOR THE LICENSE OF SPECIFIED SOFTWARE ("SOFTWARE") BY
NETWORK ASSOCIATES, INC. ("McAfee"). BY CLICKING THE ACCEPT BUTTON OR
INSTALLING THE SOFTWARE, YOU (EITHER AN INDIVIDUAL OR A SINGLE ENTITY)
CONSENT TO BE BOUND BY AND BECOME A PARTY TO THIS AGREEMENT. IF YOU DO
NOT AGREE TO ALL OF THE TERMS OF THIS AGREEMENT, CLICK THE BUTTON THAT
INDICATES THAT YOU DO NOT ACCEPT THE TERMS OF THIS AGREEMENT AND DO
NOT INSTALL THE SOFTWARE. (IF APPLICABLE, YOU MAY RETURN THE PRODUCT
TO THE PLACE OF PURCHASE FOR A FULL REFUND.)
1. License Grant. Subject to the payment of the applicable license fees, and subject to the
terms and conditions of this Agreement, McAfee hereby grants to you a non-exclusive,
non-transferable right to use one copy of the specified version of the Software and the
accompanying documentation (the "Documentation"). You may install one copy of the
Software on one computer, workstation, personal digital assistant, pager, "smart phone"
or other electronic device for which the Software was designed (each, a "Client Device").
If the Software is licensed as a suite or bundle with more than one specified Software
product, this license applies to all such specified Software products, subject to any
restrictions or usage terms specified on the applicable price list or product packaging that
apply to any of such Software products individually.
a. Use. The Software is licensed as a single product; it may not be used on more than one
Client Device or by more than one user at a time, except as set forth in this Section 1.
The Software is "in use" on a Client Device when it is loaded into the temporary
memory (i.e., random-access memory or RAM) or installed into the permanent memory
(e.g., hard disk, CD-ROM, or other storage device) of that Client Device. This license
authorizes you to make one copy of the Software solely for backup or archival
purposes, provided that the copy you make contains all of the Software's proprietary
notices.
b. Server Use. You may use the Software on a Client Device as a server ("Server") within
a multi-user or networked environment ("Server-Mode") only if such use is permitted
in the applicable price list or product packaging for the Software. A separate license is
required for each Client Device or "seat" that may connect to the Server at any time,
regardless of whether such licensed Client Devices or seats are concurrently connected
to, accessing or using the Software. Use of software or hardware that reduces the
number of Client Devices or seats directly accessing or utilizing the Software (e.g.,
"multiplexing" or "pooling" software or hardware) does not reduce the number of
licenses required
Issued May 1999 / McAfee Guard Dog

(i.e., the required number of licenses would equal the number of distinct inputs to the
multiplexing or pooling software or hardware "front end"). If the number of Client
Devices or seats that can connect to the Software can exceed the number of licenses you
have obtained, then you must have a reasonable mechanism in place to ensure that your
use of the Software does not exceed the use limits specified for the licenses you have
obtained. This license authorizes you to make or download one copy of the
Documentation for each Client Device or seat that is licensed, provided that each such
copy contains all of the Documentation’s proprietary notices.
c. Volume Licenses. If the Software is licensed with volume license terms specified in the
applicable price list or product packaging for the Software, you may make, use and
install as many additional copies of the Software on the number of Client Devices as the
volume license authorizes. You must have a reasonable mechanism in place to ensure
that the number of Client Devices on which the Software has been installed does not
exceed the number of licenses you have obtained. This license authorizes you to make
or download one copy of the Documentation for each additional copy authorized by the
volume license, provided that each such copy contains all of the Documentation’s
proprietary notices.
2. Term. This Agreement is effective for an unlimited duration unless and until earlier
terminated as set forth herein. This Agreement will terminate automatically if you fail to
comply with any of the limitations or other requirements described herein. Upon any
termination or expiration of this Agreement, you must destroy all copies of the Software
and the Documentation. You may terminate this Agreement at any point by destroying
all copies of the Software and the Documentation.
3. Updates. For the time period specified in the applicable price list or product packaging for
the Software you are entitled to download revisions or updates to the Software when and
as McAfee publishes them via its electronic bulletin board system, website or through
other online services. For a period of ninety (90) days from the date of the original
purchase of the Software, you are entitled to download one (1) revision or upgrade to the
Software when and as McAfee publishes it via its electronic bulletin board system, website
or through other online services. After the specified time period, you have no further
rights to receive any revisions or upgrades without purchase of a new license or annual
upgrade plan to the Software.
4. Ownership Rights. The Software is protected by United States copyright laws and
international treaty provisions. McAfee and its suppliers ownand retainall right, title and
interest in and to the Software, including all copyrights, patents, trade secret rights,
trademarks and other intellectual property rights therein. Your possession, installation,
or use of the Software does not transfer to you any title to the intellectual property in the
Software, and you will not acquire any rights to the Software except as expressly set forth
in this Agreement. All copies of the Software and Documentation made hereunder must
contain the same proprietary notices that appear on and in the Software and
Documentation.
User’s Guide iii

5. Restrictions. You may not rent, lease, loan or resell the Software. You may not permit
third parties to benefit from the use or functionality of the Software via a timesharing,
service bureau or other arrangement, except to the extent such use is specified in the
applicable list price or product packaging for the Software. You may not transfer any of
the rights granted to you under this Agreement. You may not reverse engineer,
decompile, or disassemble the Software, except to the extent the foregoing restriction is
expressly prohibited by applicable law. You may not modify, or create derivative works
based upon, the Software in whole or in part. You may not copy the Software or
Documentation except as expressly permitted in Section 1 above. You may not remove
any proprietary notices or labels on the Software. All rights not expressly set forth
hereunder are reserved by McAfee. McAfee reserves the right to periodically conduct
audits upon advance written notice to verify compliance with the terms of this
Agreement.
6. Warranty and Disclaimer
a. Limited Warranty. McAfee warrants that for sixty (60) days from the date of original
purchase the media (e.g., diskettes) on which the Software is contained will be free from
defects in materials and workmanship.
b. Customer Remedies. McAfee’s and its suppliers’ entire liability and your exclusive
remedy for any breach of the foregoing warranty shall be, at McAfee’s option, either (i)
return of the purchase price paid for the license, if any, or (ii) replacement of the
defective media in which the Software is contained. You must return the defective
media to McAfee at your expense with a copy of your receipt. This limited warranty is
void if the defect has resulted from accident, abuse, or misapplication. Any replacement
media will be warranted for the remainder of theoriginal warranty period. Outside the
United States, this remedy is not available to the extent McAfee is subject to restrictions
under United States export control laws and regulations.
c. Warranty Disclaimer. Except for the limited warranty set forth herein, THE
SOFTWARE IS PROVIDED "AS IS." TO THE MAXIMUM EXTENT PERMITTED BY
APPLICABLE LAW, MCAFEE DISCLAIMS ALL WARRANTIES, EITHER EXPRESS
OR IMPLIED, INCLUDING BUT NOT LIMITED TO IMPLIED WARRANTIES OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, AND
NONINFRINGEMENT WITH RESPECT TO THE SOFTWARE AND THE
ACCOMPANYING DOCUMENTATION. YOU ASSUME RESPONSIBILITY FOR
SELECTING THE SOFTWARE TO ACHIEVE YOUR INTENDED RESULTS, AND FOR
THE INSTALLATION OF, USE OF, AND RESULTS OBTAINED FROM THE
SOFTWARE. WITHOUT LIMITING THE FOREGOING PROVISIONS, MCAFEE
MAKES NO WARRANTY THAT THE SOFTWARE WILL BE ERROR-FREE OR FREE
FROM INTERRUPTIONS OR OTHER FAILURES OR THAT THE SOFTWARE WILL
MEET YOUR REQUIREMENTS. SOME STATES AND JURISDICTIONS DO NOT
ALLOW LIMITATIONS ON IMPLIED WARRANTIES, SO THE ABOVE LIMITATION
MAY NOT APPLY TO YOU. The foregoing provisions shall be enforceable to the
maximum extent permitted by applicable law.
iv McAfee Guard Dog

7. Limitation of Liability. UNDER NO CIRCUMSTANCES AND UNDER NO LEGAL
THEORY, WHETHER IN TORT, CONTRACT, OR OTHERWISE, SHALL MCAFEE OR
ITS SUPPLIERS BE LIABLE TO YOU OR TO ANY OTHER PERSON FOR ANY
INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES OF ANY
CHARACTER INCLUDING, WITHOUT LIMITATION, DAMAGES FOR LOSS OF
GOODWILL, WORK STOPPAGE, COMPUTER FAILURE OR MALFUNCTION, OR FOR
ANY AND ALL OTHER DAMAGES OR LOSSES. IN NO EVENT WILL MCAFEE BE
LIABLE FOR ANY DAMAGES IN EXCESS OF THE LIST PRICE MCAFEE CHARGES
FOR A LICENSE TO THE SOFTWARE, EVEN IF MCAFEE SHALL HAVE BEEN
ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. THIS LIMITATION OF
LIABILITY SHALL NOT APPLY TO LIABILITY FOR DEATH OR PERSONAL INJURY
TO THE EXTENT THAT APPLICABLE LAW PROHIBITS SUCH LIMITATION.
FURTHERMORE, SOME STATES AND JURISDICTIONS DO NOT ALLOW THE
EXCLUSION OR LIMITATION OF INCIDENTAL OR CONSEQUENTIAL DAMAGES,
SO THIS LIMITATION AND EXCLUSION MAY NOT APPLY TO YOU. The foregoing
provisions shall be enforceable to the maximum extent permitted by applicable law.
8. United States Government. The Software and accompanying Documentation aredeemed
to be "commercial computer software" and "commercial computer software
documentation," respectively, pursuant to DFAR Section 227.7202 and FAR Section
12.212, as applicable. Any use, modification, reproduction, release, performance, display
or disclosure of the Software and accompanying Documentation by the United States
Government shall be governed solely by the terms of this Agreement and shall be
prohibited except to the extent expressly permitted by the terms of this Agreement.
9. Export Controls. Neither the Software nor the Documentation and underlying
information or technology may be downloaded or otherwise exported or re-exported (i)
into (or to a national or resident of ) Cuba, Iran, Iraq, Libya, North Korea, Sudan, Syria or
any other country to which the United States has embargoed goods; or (ii) to anyone on
the United States Treasury Department’s list of Specially Designated Nations or the
United States Commerce Department’s Table of Denial Orders. By downloading or using
the Software you are agreeing to the foregoing and you are certifying that you are not
located in, under the control of, or a national or resident of any such country or on any
such list.
IN ADDITION, YOU SHOULD BE AWARE OF THE FOLLOWING: EXPORT OF THE
SOFTWARE MAY BE SUBJECT TO COMPLIANCE WITH THE RULES AND
REGULATIONS PROMULGATED FROM TIME TO TIME BY THE BUREAU OF
EXPORT ADMINISTRATION, UNITED STATES DEPARTMENT OF COMMERCE,
WHICH RESTRICT THE EXPORT AND RE-EXPORT OF CERTAIN PRODUCTS AND
TECHNICAL DATA. IF THE EXPORT OF THE SOFTWARE IS CONTROLLED UNDER
SUCH RULES AND REGULATIONS, THEN THE SOFTWARE SHALL NOT BE
EXPORTED OR RE-EXPORTED, DIRECTLY OR INDIRECTLY, (A) WITHOUT ALL
EXPORT OR RE-EXPORT LICENSES AND UNITED STATES OR OTHER
GOVERNMENTAL APPROVALS REQUIRED BY ANY APPLICABLE LAWS, OR (B) IN
VIOLATION OF ANY APPLICABLE PROHIBITION AGAINST THE EXPORT OR
RE-EXPORT OF ANY PART OF THE SOFTWARE.
User’s Guide v

SOME COUNTRIES HAVE RESTRICTIONS ON THE USE OF ENCRYPTION WITHIN
THEIR BORDERS, OR THE IMPORT OR EXPORT OF ENCRYPTION EVEN IF FOR
ONLY TEMPORARY PERSONAL OR BUSINESS USE. YOU ACKNOWLEDGE THAT
THE IMPLEMENTATION AND ENFORCEMENT OF THESE LAWS IS NOT ALWAYS
CONSISTENT AS TO SPECIFIC COUNTRIES. ALTHOUGH THE FOLLOWING
COUNTRIES ARE NOT AN EXHAUSTIVE LIST THERE MAY EXIST RESTRICTIONS
ON THE EXPORTATION TO, OR IMPORTATION OF, ENCRYPTION BY: BELGIUM,
CHINA (INCLUDING HONG KONG), FRANCE, INDIA, INDONESIA, ISRAEL,
RUSSIA, SAUDI ARABIA, SINGAPORE, AND SOUTH KOREA. YOU
ACKNOWLEDGE IT IS YOUR ULTIMATE RESPONSIBILITY TO COMPLY WITH ANY
AND ALL GOVERNMENT EXPORT AND OTHER APPLICABLE LAWS AND THAT
MCAFEE HAS NO FURTHER RESPONSIBILITY AFTER THE INITIAL SALE TO YOU
WITHIN THE ORIGINAL COUNTRY OF SALE.
10. High Risk Activities. The Software is not fault-tolerant and is not designed or intended
for use in hazardous environments requiring fail-safe performance, including without
limitation, in the operation of nuclear facilities, aircraft navigation or communication
systems, air traffic control, weapons systems, direct life-support machines, or any other
application in which the failure of the Software could lead directly to death, personal
injury, or severe physical or property damage (collectively, "High Risk Activities").
McAfee expressly disclaims any express or implied warranty of fitness for High Risk
Activities.
11. Miscellaneous. This Agreement is governed by the laws of the United States and the State
of California, without reference to conflict of laws principles. The application of the
United Nations Convention of Contracts for the International Sale of Goods is expressly
excluded. This Agreement sets forth all rights for the user of the Software and is the entire
agreement between the parties. This Agreement supersedes any other communications
with respect to the Software and Documentation. This Agreement may not be modified
except by a written addendum issued by a duly authorized representative of McAfee. No
provision hereof shall be deemed waived unless such waiver shall be in writing and
signed by McAfee or a duly authorized representative of McAfee. If any provision of this
Agreement is held invalid, the remainder of this Agreement shall continue in full force
and effect. The parties confirm that it is their wish that this Agreement has been written
in the English language only.
12. McAfee Customer Contact. If you have any questions concerning these terms and
conditions, or if you would like to contact McAfee for any other reason, please call (408)
988-3832, fax [phone], orwrite: McAfee Software, 3965 Freedom Circle, Santa Clara,
California 95054. http://www.mcafee.com.
Statements made to you in the course of this sale are subject to the Year 2000 Information
and Readiness Disclosure Act (Public Law 105-271). In the case of a dispute, this Act may
reduce your legal rights regarding the use of any statements regarding Year 2000
readiness, unless otherwise specified in your contract or tariff.
vi McAfee Guard Dog

User’s Guide vii
Table of Contents
Chapter 1. Welcome to Guard Dog™ . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
Guard Dog and the Internet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
How Guard Dog works . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
Guard Dog and your Internet Connection . . . . . . . . . . . . . . . . . . . . . . . . .1
What Internet problems Guard Dog solves . . . . . . . . . . . . . . . . . . . . . . . .2
What’s new in Guard Dog . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
About Guard Dog documentation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
How this book is organized . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Using Guard Dog help . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Chapter 2. Installing Guard Dog™ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
System requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
Installing Guard Dog . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
Troubleshooting installation problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
Step 1: Clean up your hard drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
Step 2: Remove temporary files . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
Step 3: Close other software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
Installing other software from the Guard Dog CD . . . . . . . . . . . . . . . . . . . . . .11
Chapter 3. Quick Tour of Guard Dog™. . . . . . . . . . . . . . . . . . . . . . . . . . .13
Viewing the Guard Dog video . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
Using the Guard Dog interview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
What information does Guard Dog ask me to enter? . . . . . . . . . . . . . . .14
Why should I create an Emergency Disk? . . . . . . . . . . . . . . . . . . . . . . .15
How password protection effects using Guard Dog . . . . . . . . . . . . . . .16
Using the Guard Dog Home screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17
Opening and closing the Guard Dog Home screen . . . . . . . . . . . . . . . .18
Performing a CheckUp . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
Updating Guard Dog . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20
Viewing the Log . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20
What Guard Dog does while your PC is running . . . . . . . . . . . . . . . . . . . . . . .21
Using the Guard Dog shortcut menu . . . . . . . . . . . . . . . . . . . . . . . . . . .21

Table of Contents
viii McAfee Guard Dog
Responding to Guard Dog alert messages . . . . . . . . . . . . . . . . . . . . . . .22
Using Browser Buddy to retrieve or store your Web site passwords .23
Using file encryption . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25
Chapter 4. Customizing Guard Dog™. . . . . . . . . . . . . . . . . . . . . . . . . . . .27
Restarting the Interview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27
Changing Protection Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27
Preferences settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29
Scheduling Guard Dog actions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29
Changing CheckUp Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .32
Chapter 5. Privacy Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .35
What Cookie Blocker does . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .35
Responding to a Cookie Blocker alert message . . . . . . . . . . . . . . . . . .36
Why should I change my Cookie Blocker settings? . . . . . . . . . . . . . . .37
What Identity Protector does . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .37
Responding to an Identity Protector alert message . . . . . . . . . . . . . . .38
Why should I change my Identity Protector settings? . . . . . . . . . . . . .39
What Web Trail Cleaner does . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .39
Responding to the Web Trail Cleaner alert message . . . . . . . . . . . . . .40
Why should I change my Web Trail Cleaner settings? . . . . . . . . . . . . .41
What Search Filter does . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .41
Chapter 6. Security Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .43
What Gatekeeper does . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .43
Responding to a Gatekeeper alert messages . . . . . . . . . . . . . . . . . . . . .43
Why should I change my Gatekeeper settings? . . . . . . . . . . . . . . . . . . .45
What File Guardian does . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .46
Responding to a File Guardian alert messages . . . . . . . . . . . . . . . . . . .47
Why should I change my File Guardian settings? . . . . . . . . . . . . . . . . .49
What Password Manager does . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .50
Chapter 7. Using AntiVirus Features . . . . . . . . . . . . . . . . . . . . . . . . . . . .53
Looking for viruses with CheckUp . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .53
Continuing virus protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .53
What Virus Sentry does . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .54

User’s Guide ix
Table of Contents
Responding to a Virus Sentry alert message . . . . . . . . . . . . . . . . . . . . .54
Why should I change my Virus Sentry settings? . . . . . . . . . . . . . . . . . .54
Keeping virus protection up-to-date . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .57
Appendix A. Internet Security and Privacy . . . . . . . . . . . . . . . . . . . . . . .59
Networks and the Internet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .59
TCP/IP is the subsystem . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .59
Why packets? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .60
The Internet and the Web…what is the difference? . . . . . . . . . . . . . . . .60
Privacy and security on the Web . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .61
Why does Internet privacy matter to me? . . . . . . . . . . . . . . . . . . . . . . . .61
Privacy on the Web . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .62
Who is snooping? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .62
Snooping and sniffing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .62
Web servers and firewalls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .62
What can I do to keep my stuff safe? . . . . . . . . . . . . . . . . . . . . . . . . . . . .63
How can I tell if a Web site is secure? . . . . . . . . . . . . . . . . . . . . . . . . . . .63
How does encryption work? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .64
Security on the Web . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .65
Nasty applets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .66
Can I prevent programs from accessing the Internet? . . . . . . . . . . . . . .66
Computer viruses and the Web . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .66
Are viruses really that dangerous? . . . . . . . . . . . . . . . . . . . . . . . . . . . . .67
Types of viruses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .67
How can my PC become infected with a virus? . . . . . . . . . . . . . . . . . . .68
Frequently asked questions about Internet privacy . . . . . . . . . . . . . . . . . . . .68
Sources for Internet privacy and security information . . . . . . . . . . . . . . . . . .70
Finding out about Internet hoaxes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .70
More information about computer viruses . . . . . . . . . . . . . . . . . . . . . . .70
More information about security . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .71
More information about privacy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .71
Appendix B. Product Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .73
How to Contact McAfee . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .73
Customer service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .73

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x McAfee Guard Dog
Technical support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .74
McAfee training . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .74