Desktop Self-Defense Instructor: Eileen O’Shea [email protected] An Infopeople Workshop Fall/Winter 2005 This Workshop Is Brought to You By the Infopeople Project Infopeople is a federally-funded grant project supported.
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Transcript Desktop Self-Defense Instructor: Eileen O’Shea [email protected] An Infopeople Workshop Fall/Winter 2005 This Workshop Is Brought to You By the Infopeople Project Infopeople is a federally-funded grant project supported.
Desktop Self-Defense
Instructor:
Eileen O’Shea
[email protected]
An Infopeople Workshop
Fall/Winter 2005
This Workshop Is Brought to
You By the Infopeople Project
Infopeople is a federally-funded grant project
supported by the California State Library. It
provides a wide variety of training to
California libraries. Infopeople workshops
are offered around the state and are open
registration on a first-come, first-served
basis.
For a complete list of workshops, and for
other information about the project, go to the
Infopeople website at infopeople.org.
Introductions
Name
Library
Position
Desktop Self-Defense
Overview
Spam, scams & viruses & what you
can do to protect yourself
Why webmail is useful - and what
to look for in a webmail account
Firewalls & Internet Explorer
security options
How to protect your computer
from spyware & adware
Desktop Self-Defense:
A Few Important Tips
Make sure automatic updates are
turned ON & you install the updates
Make sure you have file extension
viewing turned ON
Make sure you have antivirus
software on your computer & you
update it AT LEAST once a month
(weekly is better!)
Be smart about your passwords!
first up…
Getting a Grip on Email!
What Is Spam?
Spamming is the use of any electronic
communications medium to send
unsolicited messages in bulk. While its
definition is usually limited to
indiscriminate bulk mailing and not
any targeted marketing, the term
"spam" can refer to any commercially
oriented, unsolicited bulk mailing
perceived as being excessive and
undesired.
How Much Spam?
Spam accounted for 77% of all email traffic
in 2004
Telephone-based survey of adults who
use the Internet found that more than
75% receive spam daily
The average spam messages per day
is 18.5 and the average time spent
per day deleting them is 2.8 minutes
More than two in five spam emails are
medically related
What Is Phishing?
Phishing (also known as carding and
spoofing) is an attempt to fraudulently
acquire sensitive information, such as
passwords and credit card details, by
masquerading as a trustworthy person or
business in an apparently official electronic
communication, such as an email or an
instant message. The term phishing arises
from the use of increasingly sophisticated
lures to "fish" for users' financial
information and passwords.
Tips to Avoid Spam & Phishing
Scams
Don’t open strange attachments
Never email personal or financial info
Keep virus software up-to-date
Never click on links in email that say “click
here” or “login here”
Don’t buy into any email promising you
large sums of money if you email them
personal information
Email that starts “dear customer” is NOT
legitimate!
Using Bookmarks in Class
1. Go to:
http://bookmarks.infopeople.org/desktopselfdefense_bk.html
2. With the page showing in Internet Explorer,
click the Favorites menu, choose Add to
Favorites…
3. Notice the name in the Name: box so that
you can use the Favorites list to get back to
the class bookmarks for the rest of the day.
Exercise #1
How to Spot an Email Scam
What Is a
Computer Virus?
A virus is a self-replicating program
that spreads by inserting copies of
itself into other executable code or
documents. A computer virus
behaves in a way similar to a
biological virus, which spreads by
inserting itself into living cells. basic
rule is that computer viruses cannot
directly damage hardware, only
software is damaged directly.
Viruses
Enable file extension viewing in
Windows
so you know what you’re getting!
Don’t open email attachments that
seem unusual - what you don’t open
can’t hurt you!
Keep antivirus software current!
Set up automatic updates for
antivirus software and Windows
when possible
Exercise #2
Dealing with Viruses &
Other Annoyances
Why Use Webmail?
Harder to get viruses
All you need is an Internet
connection & a web browser
Allows you to have multiple
accounts for various activities office, personal, Ebay, hobbies
No hard drive crash woes!
What You Want in a
Webmail Account
Ability to send & receive
attachments
Address book can be imported &
exported
Calendar
Virus & spam protection
Ability to create folders & filters
Using Webmail - Minuses
Often less space than email programs
Yahoo! Mail gives you one gigabyte for free
ISP determines email storage limit
Limits on attachment sizes
Slower than email programs like outlook
Less “user-friendly” interfaces than
outlook or other email programs
Some sites don’t accept email from
webmail addresses like yahoo.com or
hotmail.com
Why Use Yahoo!
for Webmail?
Address book can be exported &
imported
One gigabyte of free space
Offers virus/spam protection
Calendar can be public/shared
handy for libraries!
Spam Protection in
Yahoo! Mail
On by default
Save or delete immediately?
Mark Spam + Not Spam
default settings are good
Image Blocking
safest is to let SpamGuard block as
needed
Email Tips
CC vs BCC: know the difference!
Plain text vs. HTML
Choose plain text!
Use folders to organize email
Use filters to put email into
folders
Use a spam filter!
Exercise #3
Getting Familiar with
Yahoo! Mail
Okay, enough about SPAM—
What about SPYWARE and
other web browser evils?
Web Browser Woes
Spyware
Anti-spyware software
Adware
Anti-adware software
Intruders/hackers
IE security options
firewalls
Spyware
What Is It?
“a broad category of malicious software intended
to intercept or take partial control of a
computer's operation without the user's informed
consent. While the term taken literally suggests
software that surreptitiously monitors the user, it
has come to refer more broadly to software that
subverts the computer's operation for the benefit
of a third party.”
--Wikipedia
How Pervasive Is Spyware?
49% of Internet users see spyware as a
serious threat to their online security
63% of Internet users have been plagued by
spyware in the past year
81% of Internet users say they have stopped
opening email attachments unless they are
sure these documents are safe
18% of Internet users say they have started
using a different web browser to avoid
software intrusions.
-- Pew Internet & American Life Project
How to Combat It
Anti-Spyware Software
free/shareware - SpyBot
commercial - Norton
Alternative Browsers
Firefox, Opera, Netscape
Check your ActiveX settings
Look for https:// in the URL when
ordering or entering personal info
online!
What is ActiveX?
A Microsoft technology used on the
Internet to make interactive web
pages that look and behave like
computer programs, rather than static
pages. ActiveX controls may be used
with Microsoft's Internet Explorer
browser to interact with web pages.
ActiveX controls provide functions
similar to Java Applets.
Pros and Cons of
ActiveX Controls
Good: view sophisticated web
content
Bad: lack of security
Good: interact with anything on the
desktop
Bad: interact with anything on the
desktop - making spyware able to
exploit it
Anti-Spyware Software:
Some Good Options
Spybot
freeware, no requirements
Microsoft Anti-spyware
freeware
Must have a registered version of
Windows to install
Adware - What Is It?
“Adware or advertising-supported software is
any computer program or software package
in which advertisements or other marketing
material are included with or automatically
loaded by the software and displayed or
played back after installation or in which
information about the computer or its users
activities is uploaded automatically when
the user has not requested it.”
--Wikipedia
Adware Is Not Spyware Usually!
Often the price you pay for “freeware”
-- as with Eudora or Netscape
Adware passes Info on to advertisers
Doesn’t put malicious software on your
computer
Has come to be associated with
spyware
Stopping Adware
Anti-adware software
freeware: Ad-Aware
Commercial: Norton, McAfee
Turn on popup blocking
can block good popups
can be customized
Exercise #4
Spotting the Symptoms of
Spyware or Adware
Increasing Security
in Internet Explorer
Deleting cookies & cache
settings
Adjusting Security zone settings
for greater privacy
what it does & doesn’t do
Turn on pop-up blocking
how much is too much?
Pop-ups
Not all are created equal!
Good pop-ups:
part of a program (as with
videoconferencing
part of a sign-up or sign-in system
Bad pop-ups
ads
spyware or malware
What to Do
About Pop-ups
Built-in browser pop-up blocking
most new browsers offer this,
including IE
Pop-up blocking software
many freeware, shareware options
commercial Internet security packages
also offer pop-up blocking
Toolbars - free from Google, Yahoo
you only need one
Firewalls
Block attempts to hack your
computer (zombie computers)
Can block good content as well
as bad
You only need one firewall - if
your local network is running
one, you don’t need another on
your computer
Firewall-Related Problems
May not be able to connect to
sites like the Infopeople
webcasts
Videoconferencing software
often won’t work
File and printer sharing may not
work
Is Windows Firewall
Enough?
It won’t prevent viruses or spam
from reaching your inbox
It won’t stop you from opening bad
attachments
It will let you know when bad stuff
attempts to get out & will block it
It will provide you with a log of
suspicious activity
Exercise #5
Dealing with Pop-ups
& Browser Security
Review of the Day’s
Big Points
Turn on file extension viewing
Turn on Windows Automatic Updates
Don’t open strange attachments
Use spam filters
Use anti-virus software
Install and use anti-spyware
software
Exercise #6
On the Reference Desk