Computer Crime and Cyber Crime

Intro to Computing

Phishing

is when criminals send fraudulent emails
pretending to be from legitimate businesses, in
an attempt to collect sensitive, personal
information.

Harassment

use electronic communication, such as
email, social media, or websites to stalk and harass
people.

Ransomware

Cyber criminals can install malicious software on
your system that will essentially hold your
important information hostage until you meet
their demands.

Prostitution

Many escorts will advertise their services in
online classifieds, social media forums, or their
own personal websites, making it easy and
discreet for people to find them.

Child Pornography & Solicitation

Perpetrators will use the Internet to
gain access to sexually explicit images of
children, and sometimes even arrange for a
face-to-face meeting.

Intellectual Property Theft

More commonly known as piracy, the Internet
abounds with books, music, movies, and more that
have been illegally obtained and made available for
free download.

Account Hacking

We all know how important it is to guard our
passwords – think about the damage someone could
do if they gained access to your email account
containing all your most personal information.

Drug Trafficking

With the rise of cryptocurrency, the online drug
trade has increased significantly over the past few
years.

Credit Card Fraud

Half of all it begins with spyware, malicious software unknowingly installed on a victim’s computer or handheld device. Spyware runs in the background, collecting your data and sending it back to the criminal, who then uses your card to make fraudulent purchases.

Computer Crime

is any illegal action
where the data on a computer is accessed
without permission.

Cyber crime

It encompasses any criminal act dealing
with computers and networks (called hacking).
Additionally, It also includes traditional
crimes conducted through the Internet.

The Big Brother Syndrome

is fear brought by the idea that someone –
be it the government or other entities –
are using information stored in computer
systems for their own intentions.

Rogue Software

This refers to the idea that a program can replicate
on its own just like what an organic substance
is capable of doing. In general is defined as any
program that runs on a computer without prior
consent or knowledge of the user.

Classifications of Rogue
Software

1. Backdoor
2. Chameleons
3. Logic Bombs
4. Trojan Horse
5. ANSI Bombs

Backdoor

It refers to a special password or code
which is used to bypass the normal
security measures of computer
systems.

Chameleons

Its program can imitate another
program in order to gather information.

Logic Bombs

Are programs which can destroy programs and or data when a certain trigger is encountered. The trigger can be a predefined time, date or command.

Trojan Horse

is rogue software that is readily accepted by a user because it presents itself as something useful. However it will create damage instead of doing something useful.

ANSI Bombs

Are programs which make the keyboard act
in a peculiar way.

VIRUS

Vital Information Resource Under
Siege

Virus

A program which can replicate itself without infecting any host program. A program that duplicates itself by
infecting other programs.

Worms

similar to a rogue software except that it
replicates as a separate program rather than infecting and hiding in other programs. It is is common in network
installations where it can attach to several computers
connected to the network.

Viruses

are created by very good programmers and this
may make you wonder why people with such talent create a destructive program like a virus.

A virus can be triggered to cause
destruction in several different ways:

1. Randomly-triggered
2. Date-activated
3. Boot-count
4. Time-since
5. Keystroke-triggered

Randomly-triggered

viruses are designed to attack at
random.

Date-activated

viruses wait for a pre-defined date before
it strikes.

Boot-count

viruses will count the number of times the
computer is booted.

Time-since

viruses attacks after the computer is left
open for a specified period of time.

Keystroke-triggered

viruses will activate itself after a
predefined number of keystrokes.

Funny Virus Names

1. AT&T VIRUS
2. DISNEY VIRUS
3. Public Transportation VIRUS
4. TEENAGER VIRUS
5. SPICE GIRL VIRUS

How will you know if your system
is infected by a virus?

System Slowdown
Unexpected display of messages
Unexpected graphics on screen
Unexpected file date or time change
Unexpected music
Corruption of system and data files.

Safe Computing Tips

I. Know the computer that you are using.

II. Keep your password secured.

III. Avoid just letting anyone use your computer.

IV. Check storage devices such as diskettes, flash
drives, memory cards before using them.

V. Use an anti-virus

VI. Update your computer

VII. Routinely scan your system and connected devices

Software Piracy

1. Copyright
2. Site License

Copyright

The legal right granted to an author,
composer, playwright, publisher, or distributor to
exclusive publication, production, sale, or distribution of a literary, musical, dramatic, or artistic work.

Site License

an agreement through which the buyer of
the software has the right to use the program on a given
number of computers.

Software Licenses

Shrink-Wrap
Shareware
Freeware
Public-Domain Software
Open-Source

Shrink Wrap

Type of passive contract which the buyer of a software is deemed to accept by the fact of opening its shrink wrapped package.

Freeware

Is computer software that is available for
use at no cost or for an optional fee, but
usually with one or more restricted usage
rights.

Shareware

refers to proprietary software that is provided to users without payment on a trial basis and
is often limited by any combination of functionality, availability, or convenience.

Public-Domain Software

is software that has been placed in the public domain, in
other words there is absolutely no ownership (such as copyright) of the intellectual property that the software
represents.

Open-Source

is computer software that is available in source code form: the source code and certain other rights normally reserved for copyright holders are provided under a software license that permits users to study, change, improve and at times also to distribute the software.

Environment Friendly
Computing

Recycle Paper

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Maximize the use of e-mails

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Turn off the computer if not going to be used for several hours

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Used refills for ribbons, ink cartridges or toners

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