Skip to main content

Pros and Cons

There are several ways a security system can verify that somebody is an authorized user. Most systems are looking for one or more of the following:
  • What you have
  • What you know
  • Who you are

To get past a "what you have" system, you need some sort of "token," such as an identity card with a magnetic strip. A "what you know" system requires you to enter a password or PIN number. A "who you are" system is actually looking for physical evidence that you are who you say you are -- a specific fingerprint, voice or iris pattern.

"Who you are" systems like fingerprint scanners have a number of advantages over other systems. To name few:

  • Physical attributes are much harder to fake than identity cards.
  • You can't guess a fingerprint pattern like you can guess a password.
  • You can't misplace your fingerprints, irises or voice like you can misplace an access card.
  • You can't forget your fingerprints like you can forget a password.

But, as effective as they are, they certainly aren't infallible, and they do have major disadvantages. Optical scanners can't always distinguish between a picture of a finger and the finger itself, and capacitive scanners can sometimes be fooled by a mold of a person's finger. If somebody did gain access to an authorized user's prints, the person could trick the scanner. In a worst-case scenario, a criminal could even cut off somebody's finger to get past a scanner security system. Some scanners have additional pulse and heat sensors to verify that the finger is alive, rather than a mold or dismembered digit, but even these systems can be fooled by a gelatin print mold over a real finger.

To make these security systems more reliable, it's a good idea to combine the biometric analysis with a conventional means of identification, such as a password (in the same way an ATM requires a bank card and a PIN code).

The real problem with biometric security systems is the extent of the damage when somebody does manage to steal the identity information. If you lose your credit card or accidentally tell somebody your secret PIN number, you can always get a new card or change your code. But if somebody steals your fingerprints, you're pretty much out of luck for the rest of your life. You wouldn't be able to use your prints as a form of identification until you were absolutely sure all copies had been destroyed. There's no way to get new prints.

But even with this significant drawback, fingerprint scanners and biometric systems are an excellent means of identification. In the future, they'll most likely become an integral part of most peoples' everyday life, just like keys, ATM cards and passwords are today.

Popular posts from this blog

IT EMPLOYEE HEALTH ISSUES

An increasing number of IT professionals have been finding it difficult to handle emotional stress, according to experts. An ‘occupational hazard,' the stress related to work needs to be addressed without delay, they emphasise.

“Coping with stress and striving for mental health welfare should be a matter of concern for all and not treated simply as a lifestyle problem of the ‘IT phenomenon',” says Nithya Chandrasekaran, a consultant physician for many IT companies in the city. Post-recession, employees feel pressured to perform well.

Regular occupational problems such as wrist problems due to constant handling of the mouse, slip disc and eye fatigue are common now, but handling stress that arises owing to fear of losing job or to cope with the increasing competition, affects the employee's performance, eventually, taking a major toll on his health, doctors explain.

The project that K. Balajee (29) was handling was pulled off after six months of its inception. Currently ma…

Hide Files or Folders Using Command Prompt

Hide Files or Folders Using Command Prompt This is my second instructable. This one is totally different from my previous post...
In this esteemed instructable i'll be guiding you to hide a folder by using cmd.. Even the folder option method won't be able to track the hidden folder

You'll need
1. Windows based operating system
Step 1: Run Command Prompt and Basic Text Commands There are several methods to run cmd.. Some of them are listed below

1. Start -> Run -> Cmd
2. Starrt -> Program Files -> Accessories - > Command Prompt

Command Prompt is a newer version of Dos and other os similar to that.. In order to fulfill your needs to hide a folder you must atleast know some basic commands ...

Cd - navigates through a folder
Md - creates a folder
Dir - Directory list
Attrib - provides with various attrib features
Step 2: Hide d targeted folder Alright, it's time to hide the folder

Presuming that I have a folder named Secret in F:\ Drive
Here are the steps to do

First of all n…

Computer Server

Server A server is a computer that provides data to other computers. It may serve data to systems on a local area network (LAN) or a wide area network (WAN) over the Internet.

Many types of servers exist, including web servers, mail servers, and file servers. Each type runs software specific to the purpose of the server. For example, a Web server may run Apache HTTP Server or Microsoft IIS, which both provide access to websites over the Internet. A mail server may run a program like Exim or iMail, which provides SMTP services for sending and receiving email. A file server might use Samba or the operating system's built-in file sharing services to share files over a network.

While server software is specific to the type of server, the hardware is not as important. In fact, a regular desktop computers can be turned into a server by adding the appropriate software. For example, a computer connected to a home network can be designated as a file server, print server, or …