class 17 and 18

Defining Security Issues

Friday, 11 March 2016 1

General E-Business Security Issues

• Any E-Business needs to be concerned about network security.

• The Internet is a “public” network consisting of thousands of interconnected private computer networks.

• Private computer network systems are exposed to threats from anywhere on the public network.

• Businesses must protect against the unknown.

• New methods of attacking networks and Web sites, and new network security holes, are being constantly discovered or invented.

• An E-Business cannot expect to achieve perfect security for its network and Web site.


Security Questions

• Several aspects of E-Business computer systems security need to be

addressed:

– How secure is the server software?

– How secure are communications?

– How is the data protected once it is delivered to the E-Business?

– How are credit card transactions authenticated and authorized?


Network and Web Site Security

• An entire glossary of words and phrases identifies network and Web

security risks, such as hacker, cracker, Trojan horse, and more.

• As part of planning a startup E-Business’s security, management

should become familiar with network and Web server security risk

terminology.


Denial of Service Attacks (DoS)

• Designed to disable a Web site by flooding it with useless traffic or

activity.

• Distributed denial of service (DDoS) attack uses multiple computers to

attack in a coordinated fashion.

• Risk is primarily centered around downtime or lack of Web site

availability.

• Defenses exist for these attacks.

– Routers used to filter out certain types of network traffic


Viruses

• A common threat that is not unique to networks.

• Networks facilitate the spread of viruses.

• Potential for harm is high including loss of data and downtime.

• Good software defenses are available.

• Defenses require diligence.


Viruses

• Virus – small program that inserts itself into other program files that

then become “infected”

• Trojan Horse – type of virus that emulates a benign application, that

appears to do something useful, but is actually harmful (destroy files or

creates a “back door”

• Worm – type of virus that replaces a document or application with its

own code and then uses that code to replicate itself.


Viruses

• Logic bomb – virus whose attach is triggered by some event such as a

date on a computer’s system clock

• Macro virus – malicious macro written in MS Office that run upon

opening that MS Office document


Web Site Defacement

• Occurs when a hacker penetrates the system and replaces text or

graphics with “other” material.

• Risk is primarily down time and repair costs.

• There have been many well publicized examples, including high profile

industry and government sites.

• Ordinary defenses against unauthorized logins are a first line defense.

• Total security may be difficult to achieve.


Electronic Industrial Espionage

• A very serious problem, especially considering that “professional”

hackers may be involved.

• Must implement and diligently maintain industry standard “best

practices”.

• Additional recommendations:

– Don’t open questionable or suspicious e-mail attachments.

– Keep security software and virus checkers updated.


Credit Card Fraud & Data Theft

• E-Business is at risk from credit card fraud from stolen data.

• Secure your own data.

• Verify the identity of your customers and the validity of the incoming

credit card data.

• Identity theft by a someone masquerading as someone else is also a

common problem.


Data Spills

• A security problem caused, ordinarily by a bug or other “system” failure,

occasionally hackers are behind this problem

• This is an unintended disclosure of customer or corporate data through

the Web or other Internet service

• May expose firm to legal liability


Network and Web Site Security

• Tools such as passwords, firewalls, intrusion detection systems (IDS),

and virus scanning software should be used to protect an E-Business’s

network and Web site.

• Firewall – hardware or software used to isolate a private network from

the public network

• IDS – ability to analyze real-time data to detect, log, and stop

unauthorized network access as it happens.


Firewall


Transaction Security and Data Protection

• Tools to protect transaction/customer data:

– Use a predefined key to encrypt and decrypt the data during transmission.

– Use the secure sockets layer (SSL) protocol to protect data transmitted over the

Internet.

– Move sensitive customer information such as credit card numbers offline or

encrypting the information if it is to be stored online.


Transaction Security and Data Protection

• Remove all files and data from storage devices including disk drives

and tapes before getting rid of the devices.

• Shred all hard-copy documents containing sensitive information before

trashing them.

– Shredder market up

• Security is only as strong as the weakest link.


Security Audits and Penetration Testing

• Can provide an overall assessment of the firm’s current exposure and

vulnerabilities.

• This is an outsourced item.

• Consultant will provide a comprehensive recommendation to address

list of vulnerabilities.


Risk Management Problems

• The list of potential risks is long and includes:

• Business interruptions caused by Web site defacement or denial of service attacks

• Litigation and settlement costs over employees’ inappropriate use of e-mail and the Internet

• Product or service claims against items advertised and sold via a Web site.

• Web related copyright, trademark, and patent infringement lawsuits

• Natural or weather-related disasters

•


Risk Management Problems

• Network and Web site security and intruder detection programs

• Antivirus protection

• Firewalls

• Sound security policies and procedures

• Employee education


Understanding

Back-End Systems


Front-End Systems

• Front- end systems are those processes with which a user interfaces,

and over which a customer can exert some control.

• For an E-Business, front-end systems are the Web site processes that

customers use to view information and purchase products and

services.


Back-End Systems

• Back-end systems are those processes that are not directly accessed

by customers.

• Back-end systems include the business’s ERP and CRM systems that

handle the accounting and budgeting, manufacturing, marketing,

inventory management, distribution, order-tracking, and customer

support processes.


Front- & Back-End Systems


Legacy System Integration

• There are several issues involving the integration of Web site systems

with existing systems (legacy systems):

– Real-time requirements vs. batch mode

– Security

• Trust protections – method of securing system connection between supplier/shipping agent

and e-business servers

– Technology issues

• Integrating different systems sometimes requires middleware to allow for communication


Business Records Maintenance

• All businesses must keep records.

• Records of orders, payment and delivery, and customer data are

necessary. Various regulations or laws require transaction records,

such as sales tax records.


Backup and Disaster Recovery

• Most of the time things run well, but sometimes:

– Computers “crash;” hardware or software fails.

• What is the failure rate of a hard drive?

– “Mother Nature” happens: hurricanes, earthquakes, and tornados.

• The firm must have in place procedures to back-up and restore key

data.


Backup and Disaster Recovery (cont’d)

• Some firms go to the extent of having backup data centers.

• If you outsource your Web and Internet services, be sure to review your

vendor’s policies and plans for disaster recovery.

• Disaster Recovery

– 9/11

– Power outage last fall


Disaster Recovery Plans

• Disaster Recovery Plans address several issues:

– Access to telephones and communication lines

– Scaled-down functional servers

– Networking software and hardware

– Relevant data and databases

– Network configuration information


Disaster Recovery Plans (cont’d)

• Emergency duty rosters

• Procedure for notifying employees where to report following a disaster

• Contact information and building blueprints and specifications provided

to police and fire departments

• Emergency service agreements with outside electrical, telephone, and

Internet service providers


Disaster Recovery Options

• Hot-swappable drives

• Redundant array of independent disks (RAID)

• Uninterruptible power supplies (UPS)

• Generators

• Spare system (fail-over system)

• Mirrored servers


Order Fulfillment

• Order fulfillment may be the most critical part of an E-Business's

operations.

• Failure to handle the order fulfillment process well can result in

unhappy customers and bad-will.

• Fulfillment issues include inventory management, order picking and

packaging, and shipping.


Inventory Management

• Many issues:

– How is inventory stored?

– How is inventory arranged in order to find specific items when they are ordered?

– How is inventory movement (sales and replenishment) tracked?


Order Picking

• Firms that manage their own inventory have to manage any number of

issues in addition to tracking and storage.

• Picking the correct items is a key element.

• Mis-picks are expensive.


Shipping and Delivery

• There are many shipping options

– Post office

– UPS

– FedEx

• Many approaches to pricing shipping costs:

– Build into cost of product

– Charge as a % of order

– Charge actual rate

– Charge flat fee


Returns Processing

• Most firms have a significant return rate; 10% is typical.

• Issues:

– How to facilitate the customer return

– How to minimize returns in the first place

– How to resell or dispose of returned goods

• Must state a clear return policy


International Shipping

• International shipping adds a layer of problems.

• Different shipping companies may be used.

• Additional paperwork needed for Customs clearances.

• Customs duties or taxes may be incurred.

• Export controls may effect transactions depending on the product and

country of destination.


Outsourcing Fulfillments Management

• Fulfillment Houses (Third-party logistics – 3PL)

– ShipMax.com

– Fingerhut Business Services

• Outsourcing order fulfillment may be cost effective.

• Many large firms outsource at least part of fulfillment process.

• May be combined with shipping services.


Virtual Inventory

• An alternative to holding inventory either in-house or outsourcing

• The wholesaler keeps the inventory and ships on the order to the end

consumer

• Advantages

– Infinite scalability

• Disadvantages

– Loss of control


Mobile Commerce


Mobile Commerce

• Mobile commerce (m-commerce, m-business)—any e-commerce done

in a wireless environment, especially via the Internet

– Can be done via the Internet, private communication lines, smart cards, etc.

– Creates opportunity to deliver new services to existing customers and to attract

new ones


Mobile commerce from the Customer‘s point of view

• The customer wants to access information, goods and services any

time and in any place on his mobile device.

• He can use his mobile device to purchase tickets for events or public

transport, pay for parking, download content and even order books and

CDs.

• He should be offered appropriate payment methods. They can range

from secure mobile micropayment to service subscriptions.


Mobile commerce from the Provider‘s point of view

• The future development of the mobile telecommunication sector is heading more and more towards value-added services. Analysts forecast that soon half of mobile operators‘ revenue will be earned through mobile commerce.

• Consequently operators as well as third party providers will focus on value-added-services. To enable mobile services, providers with expertise on different sectors will have to cooperate.

• Innovative service scenarios will be needed that meet the customer‘s expectations and business models that satisfy all partners involved.


M-Commerce Terminology

• Generations

• 1G: 1979-1992 wireless technology

• 2G: current wireless technology; mainly accommodates text

• 2.5G: interim technology accommodates graphics

• 3G: 3rd generation technology supports rich media (video clips)

• 4G: will provide faster multimedia display


Terminology and Standards

• GPS: Satellite-based Global Positioning System

• PDA: Personal Digital Assistant—handheld wireless computer

• SMS: Short Message Service

• EMS: Enhanced Messaging Service

• MMS: Multimedia Messaging Service

• WAP: Wireless Application Protocol

• Smartphones—Internet-enabled cell phones with attached applications


Attributes of M-Commerce and Its Economic Advantages

• Mobility—users carry cell phones or other mobile devices

• Broad reach—people can be reached at any time

• Ubiquity—easier information access in real-time

• Convenience—devices that store data and have Internet, intranet, extranet connections

• Instant connectivity—easy and quick connection to Internet, intranets, other mobile devices, databases

• Personalization—preparation of information for individual consumers

• Localization of products and services—knowing where the user is located at any given time and match service to them


Mobile Computing Infrastructure

• Hardware

• Software

• Networks and access


M-Commerce Applications


M- commerce

Entertainment

• Music

• Games

• Graphics

• Video

Communications

• Short Messaging

• Multimedia Messaging

• Unified Messaging

• e-mail

• Chatrooms

• Video - conferencing

Transactions

• Banking

• Broking

• Shopping

• Auctions

• Booking & reservations

• Mobile wallet

• Mobile purse

Information

• News

• City guides

• Directory Services

• Maps

• Traffic and weather

• Corporate information

• Market data

Limiting technological factors


Mobile Devices

•Battery

•Memory

•CPU

•Display Size

Networks

•Bandwidth

•Interoperability

•Cell Range

•Roaming

Localisation

•Upgrade of Network

•Upgrade of Mobile

Devices

•Precision

Mobile Middleware

•Standards

•Distribution

Security

•Mobile Device

•Network

•Gateway

Mobile Computing


What Is Mobile Computing?

• A simple definition could be:

Mobile Computing is using a computer (of one kind or another) while on

the move

• Another definition could be:

Mobile Computing is when a (work) process is moved from a normal

fixed position to a more dynamic position.

• A third definition could be:

Mobile Computing is when a work process is carried out somewhere

where it was not previously possible.


Comparison

• Wired Networks

– high bandwidth

– low bandwidth variability

– can listen on wire

– high power machines

– high resource machines

– need physical access(security)

– low delay

– connected operation


• Mobile Networks

– low bandwidth

– high bandwidth variability

– hidden terminal problem

– low power machines

– low resource machines

– need proximity

– higher delay

– disconnected operation

Challenges

• Disconnection

• Low bandwidth

• High bandwidth variability

• Low power and resources

• Security risks

• Wide variety terminals and devices with different capabilities

• Device attributes

• Fit more functionality into single, smaller device


Applications of Mobile Computing

• Vehicles

• Nomadic user

• Smart mobile phone

• Invisible computing

• Wearable computing

• Intelligent house or office

• Meeting room/conference

• Taxi/Police/Fire squad fleet

• Service worker

• Lonely wolf

• Disaster relief and Disaster alarm

• Games

• Military / Security


Wireless Web,

Concepts of WAP


Wireless Web

• The wireless Web refers to use of the World Wide Web through a

wireless device, such as a cellular telephone or personal digital

assistant (PDA).

• Wireless Web connection provides anytime/anywhere connection to e-

mail, mobile banking, instant messaging, weather and travel

information, and other services.

• In general, sites aiming to accommodate wireless users must provide

services in a format displayable on typically small wireless devices.


Different Wireless Networks

WiFi

WiMax

VOIP

GPS

RFID

Bluetooth

Infrared

WiFi

Wireless Fidelity = wireless LAN

Wireless Connection to access a Network

Wireless LAN

Standard for transmitting information in the form of radio waves over

distances up to about 100 - 300 feet

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WiFi

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WiMax

Worldwide Interoperability Microwave Access = Metro based broadband wireless access

Longer distance coverage (~50 km)

Connecting geographically remote areas

WiFi and WiMax

VOIP

Voice Over Internet Protocol

VOIP Phones are connected to the internet using n/w cables or WiFi

Preferred over normal cabled telephone

Interactive user interface

Easy connectivity

VOIP

Cost Reduction

Quality

Parallel calls using same connection

No limitation on location

GPS

Global Positioning System

Satellite based tracking

Used for navigation

Applications:

Fleet Management

Logistics

Asset tracking

RFID

Radio Frequency Identification

Transmitting signal over Radio Wave from an object connected to RFID device to the reader

Objective is to keep track

Applications :

Inventory Management

Retail Store

Logistics

RFID Applications

Bluetooth

Bluetooth is a wireless technology standard for exchanging data over short distances (using

short-wavelength radio transmissions in the ISM band from 2400–2480 MHz) from fixed and

mobile devices, creating personal area networks (PANs) with high levels of security.

Infrared

Infrared (IR) light is electromagnetic radiation with longer wavelengths than those of visible

light, extending from the nominal red edge of the visible spectrum at 700 nanometres (nm) to

1 mm.

Data transmission is employed in short-range communication among computer peripherals

and personal digital assistants.

Infrared is the most common way for remote controls to command appliances.

IR does not penetrate walls and so does not interfere with other devices in adjoining rooms.

WAP Architecture


Comparison between Internet and WAP technologies


Types of Networks

• Some of the different networks based on size

– Personal area network, or PAN

– Local area network, or LAN

– Metropolitan area network, or MAN

– Wide area network, or WAN

• Some of the different networks based on their main purpose

– Storage area network, or SAN

– Enterprise private network, or EPN

– Virtual private network, or VPN


Topology

• Three fundamental shapes:

– Bus

– Ring

– Star

• May create hybrid topologies


Bus


Ring


Star


Hybrid Physical Topologies: Star-Wired Ring


Star-Wired Bus
