CYBER CRIME & SECURITY

Cybercrime

is nothing but where the computer is used as an object or subject of crime!

worm program

written by a college student shut down about 10 percent of computers connected to the Internet. This was the beginning of the era of cyber attacks.

1920

on what year does worm program begins?

1997

what year does virus

1995

Breaking Web Sites

2000

Malicious Code (Melissa) 

2003 - 2004

Advanced Worm/ Trojan (I Love You) 

2005 - 2006

Identity Theft (Phishing) 

2007 - 2008

Organised Crime Data Theft, DoS/DDoS

The Computer as a Target

The computer as a weapon

Categorization of Cyber crime 

1. Hacking 

2. Denial of service attack 

3. Virus Dissemination 

4. Computer Vandalism 

5. Cyber Terrorism 

6. Software Piracy

Types of Cyber crime 

• Hacking 

• Malware

• Phishing 

• Rootkits

• Spam 

• Spyware 

• Trojans 

• Viruses 

Examples of Cybercrime

Hacking

in simple terms means an illegal intrusion into a computer system and/or network .Also called as cracking

Cracking

Hacking also called

Hacking

means finding out weaknesses in an established system and exploiting them.

computer hacker

is a person who finds out weaknesses in the computer and exploits it.

• For profit, protest, or challenge.

• A large fraction of hacker attacks have been pranks

• Financial Gain

• Revenge

• Venting anger at a company or organization

• Terrorism

Why do hackers attack?  

Denial of Service Attack  

Attack through which a person can render a system unusable or significantly slow down the system for legitimate users by overloading the system so that no one else can use it.

Denial of Service Attack  

• Act by the criminal, who floods the bandwidth of the victims network.

Virus Dissemination  

Malicious software that attaches itself to other software. (virus, worms, Trojan Horse, web jacking, e-mail bombing etc.)

Computer Vandalism

Damaging or destroying data rather than stealing.

Computer Vandalism

Transmitting virus

Cyber Terrorism 

Use of Internet based attacks in terrorist activities.

Cyber Terrorism

Technology savvy terrorists are using 512-bit encryption, which is impossible to decrypt.

Software Piracy

Theft of software through the illegal copying of genuine programs.

Software Piracy

Distribution of products intended to pass for the original.

Cyber security

is a branch of computer security specifically related to the Internet.

Cyber security

It's objective is to establish rules and measure to use against attacks over the Internet.

1. Defend us from critical attacks.

2. Browse the safe website.

3. Internet security process all the incoming and outgoing data on our computer.

Advantages of Cyber Security 

1. Install OS/SoftwareUpdates

2. Run Anti-virus Software

3. Prevent IdentityTheft

4. Protect Passwords

5. Avoid Spyware/Adware

6. Turn on Personal Firewalls

7. Back up ImportantFiles

Top Seven Cyber-Safety Actions 

Install OS/Software Updates

Updates-sometimes called patches-fix problems with your operating system (OS) (e.g., Windows XP, Windows Vista, Mac OS X) and software programs (e.g., Microsoft Office applications).

Install OS/Software Updates

Most new operating systems are set to download updates by default.

Install OS/Software Updates 

Be sure to restart your computer after updates are installed so that the patches can be applied immediately.

Run Anti-Virus Software

To avoid computer problems caused by viruses, install and run an anti-virus program like Norton,Quick Heal,etc.

Run Anti-Virus Software

Periodically, check to see if your anti-virus is up to date by opening your anti-virus program and checking the Last updated date.

Anti-virus software

removes viruses, quarantines and repairs infected files, and can help prevent future viruses.

Prevent Identity Theft

Don't give out financial account numbers, Social Security numbers, driver’s license numbers or other personal identity information unless you know exactly who's receiving it. Protect others people’s information as you would your own.

Prevent Identity Theft

Never send personal or confidential information via email or instant messages as these can be easily intercepted.

Beware of phishing scams

a form of fraud that uses email messages that appear to be from a reputable business (often a financial institution) in an attempt to gain personal or account information. Legitimate businesses will not ask for personal information online.

Protect Passwords 

Do not share your passwords, and always make new passwords difficult to guess by avoiding dictionary words, and mixing letters, numbers and punctuation.

Protect Passwords 

Do not use one of these common passwords or any variation of them: qwerty1, letmein,etc.

Protect Passwords 

Change your passwords periodically.

• Mix upper and lower case letters

• Use a minimum of 8 characters

• Use mnemonics to help you remember a difficult password

• When choosing a password:

Protect Passwords 

Store passwords in a safe place. Consider using KeePass Password Safe , an encrypted USB drive to store passwords.

Spyware and adware

take up memory and can slow down your computer or cause other problems.

Avoid Spyware/Adware 

Use Spybot and Ad-Aware to remove spyware/adware from your computer

Avoid Spyware/Adware 

Watch for allusions to spyware and adware in user agreements before installing free software programs.

Avoid Spyware/Adware 

Be wary of invitations to download software from unknown internet sources.

Firewalls

act as protective barriers between computers and the internet.

Turn on Personal Firewalls

Check your computer's security settings for a built-in personal firewall. If you have one, turn it on. Microsoft Vista and Mac OSX have built-in firewalls.

Turn on Personal Firewalls

Once your firewall is turned on, test your firewall for open ports that could allow in viruses and hackers. 

Turn on Personal Firewalls

Hackers search the Internet by sending out pings (calls) to random computers and wait for responses. Firewalls prevent your computer from responding to these calls.

Back up Important Files 

Reduce your risk of losing important files to a virus, computer crash, theft or disaster by creating back-up copies.

Back up Important Files 

Keep your critical files in one place on your computer’s hard drive so you can easily create a back up copy.

Back up Important Files 

Save copies of your important documents and files to a CD, online back up service, flash or USB drive, or a server.

Back up Important Files 

Store your back-up media in a secure place away from your computer, in case of fire or theft.

Cyber Safety at Home 

Physically secure your computer by using security cables and locking doors and windows in the dorms and off- campus housing.

Cyber Safety at Home 

Avoid leaving your laptop unsupervised and in plain view in the library or coffee house, or in your car, dorm room or home.

Cyber Safety at Home 

Set up a user account and password to prevent unauthorized access to your computer files.

Cyber Security at work 

Be sure to work with your technical support coordinator before implementing new cyber-safety measures.

Cyber Security at work 

Report to your supervisor any cyber-safety policy violations, security flaws/weaknesses you discover or any suspicious activity by unauthorized individuals in your work area.

Cyber Security at work 

Physically secure your computer by using security cables and locking building/office doors and windows.

Cyber Security at work 

Do not install unnecessary programs on your work computer.