Clipboard Hack Problem Internet Explorer Security Tip

Clipboard Hack Problem - Shocking news about CTRL+C:  View Demo

CTRL + C is the most useful action that we use everyday. But, I have found this to be very dangerous with internet explorer and netscape navigator. Because, your clipboard text (which you have copied by pressing CTRL+C on your system) can be easily retrieved by the websites, if they really wish to do so.

Imagine a scenario, when you tried to copy your account number or password or any other personal information on your system, it will be saved (or copied) into the clipboard (temperory buffer in your operating system). Then if you open the website (one who intentionally try to access your personal information, i.e. the hackers) knowingly or unknowingly. Thats is it, they are done with their work. You need not do anything on your own. Your information is copied and they can access the information from the clipboard and use it for illegal activities.

So be very careful my dear friends. This will work in internet explorer and netscape navigator only. This is not possible with google chrome,mozilla firefox or any other browser. Remeber, today the most used browser around the world is internet explorer. So just avoid these kind of attacks and be on safe side.

Follow the steps below to safeguard yourself from clipboard hack:

1. GoTo internet option --> Security
2. Press custom level
3. Under allow paste operations via script, Select "Disable" radio button

 Your are done with the security setup. Now, your browsing is safe than before. Enjoy the browing

Orkut security tips: Secure your orkut account

Due to orkut's open nature, users can unwillingly infect their computers with viruses, spyware, adware, and other unwanted junk. This can result in strange behavior, such as sending unintended scraps to friends that may even infect more viruses. To help prevent this from happening, I recommend the following safe practices:

    * Don't click on any link (e.g., free recharge coupon kind of) you suspect to be malicious, even if sent by someone you really trust.
    * Never select the "remember me" option when you're using a public or shared computer.
    * Scan your computer regularly for viruses, spyware and adware.
    * Never run any script while logged into orkut, no matter what it claims to do. Usually you will be asked to copy and paste a code in your web browser, remember to never do so!
    * Always check your browser's address bar to make sure you enter your sign-in information only on www.orkut.com and other Google properties.
    * Change your password regularly and keep it secret.

Additionally, orkut or google will never send you spam emails asking you to download anything or to send them personal information, such as your password or bank account information. Orkut is a free service, and it will remain safe with your help.

Enjoy Social Networking :) :)

ASP.NET SiteMap Example

Intro:
           SiteMap in asp.net is very usefull if you want to give your users access to all the pages in your application. And sitemap is also usefull for the search engines to navigate your site easily. We are going to look at the asp.net sitenavigation control,treeview control,menu control and the web.sitemap file provided in asp.net

Demo:
            Following is a sample demo on how to use a sitenavigation,menu and tree view controls and the web.sitemap file to display the whole site map of a website.

Download Demo

I will explain the demo in the next post.

Happy coding :)

Comparing Two Images in C#

Comparing Two Images in C#

I’ve recently been doing a bit of work generating images, I have also need to compare the images that I generate with an image that has already exists.
I found a number of web sites that suggested the following way of comparing two images, by cycling through each pixel in an image and returning false if there is a mismatch in the pixels.

*A quick brain tickler**…*

*A quick brain tickler**…*

Please look at the math below:
They say only people with an IQ with 120 and over are able to figure this
out.

If:
2 + 3 = 10    = 2
7 + 2 = 63    = 7
6 + 5 = 66    = 6
8 + 4 = 96    = 8

Then:
ch
9 + 7 =  ????

The number you find out is the password to open the attachment.
Sign your name, save it, and forward it, replacing the original
attachment with your saved updated attachment, to any more smart
people you know






For answer, get back after 24 hours

Download File here

Working with Delegates in C#

Abstract In this article I'll discuss what delegates are with lucid code examples. Introduction

Delegates in C# are like functions pointers in C/C++. A multi cast delegate can refer to several methods. A delegate can be used to invoke a method, the call to which can only be resolved or determined at runtime. This article discusses what delegates are and how they can be used in C# with lucid code examples.

Understanding Connection Pooling in .NET

Abstract
Connection Pooling can increase the database performance to a huge extent. This article discusses what Connection Pooling actually is, how it can boost the performance of database access and how we can create a Connection Pool in .NET and add and remove connections to it.

Introduction

Connecting to the database is resource intensive and a relatively slow operation in an application but the most crucial of them all. A Connection Pool is a container of open and reusable connections. A Connection Pool is released from the memory when the last connection to the database is closed. The basic advantage of using Connection Pooling is an improvement of performance and scalability while the main disadvantage is that one or more database connections, even if they are currently not being used, are kept open. The Data Providers in ADO.NET have Connection Pooling turned on by default; if you need to turn it off, specify Pooling = false in the connection string being used. Connection Pooling gives you an idle, open, reusable connection instead of opening a new one every time a connection request to the database is made. When the connection is closed or disposed, it is returned to the pool and remains idle until a request for a new connection comes in. If we use Connection Pooling efficiently, opening and closing of connections to the database becomes less resource expensive. This article discusses what Connection Pooling is all about and how Connection Pooling can be used efficiently to boost the performance and scalability of applications.

Working with Images Using .NET

Abstract
In this code snippet I will examine how to work with images using Visual Studio .NET 2003 and SQL Server 2000 database.

Introduction
Some applications, be it desktop or web, require working with images.  Aptly speaking, the good paradigm is banking applications.  Withdrawal of an amount of money from a bank account requires signature verification of the account holder.  Normally, specimen signatures of customers are archived as images in such applications.

Working with Images Using .NET

Abstract

In this code snippet I will examine how to work with images using Visual Studio .NET 2003 and SQL Server 2000 database.


Introduction

Some applications, be it desktop or web, require working with images.  Aptly speaking, the good paradigm is banking applications.  Withdrawal of an amount of money from a bank account requires signature verification of the account holder.  Normally, specimen signatures of customers are archived as images in such applications.

There can be a couple of ways to work around to store images.  One is typically to tag each image with a unique identifier and save the image at a physical location accessible by the application. Store that unique identifier and the physical absolute/relative path in a database table.  Now, when the application looks in for a given identifier from database table then the path against the identifier can be pulled from the table and uses that path in any image control to display the image.

Multithreading with an Example of .NET Application

Abstract
In this article I will discuss the basics of multithreading and how it could be effective over a single thread application. It also includes the advantages and disadvantages of multithreading. The article includes the complete .NET project for creating a simple multithreaded application.

Introduction

Threads are also known as lightweight processes.  However, if we go into depth then we would know that a thread is not actually a process; rather it provides ways for executing different parts of a program.  Now let us discuss what it actually means by multithreading.  Multithreading (as the name suggests multi+threading) is nothing but an efficient execution of multiple threads at a time to enhance the performance of the application.  For example, we are doing a file copy operation with a status bar on UI indicating the completion percentage.  Here we need to keep track of how much file size is copied and at the same time we also need to advance the progress bar accordingly.  This can not be done efficiently in a single thread and you have to use multiple threads.

The above example shows just one instance where we are forced to use multithreading.  However, when we are not forced we can also use this for the betterment of the application performance. And of course, all this depends on how effectively the thread is implemented in an application.  Most of the developers do not use multithreaded applications and continue with a single thread.  However, the efficient use of threads can give birth to a highly powerful application.