generate qr code in c# Have your system ask the user to verify the last log-on date or time. in Visual C#.NET

Creation QR Code 2d barcode in Visual C#.NET Have your system ask the user to verify the last log-on date or time.

Have your system ask the user to verify the last log-on date or time.
QR Code 2d Barcode Creation In C#
Using Barcode printer for Visual Studio .NET Control to generate, create QR Code 2d barcode image in .NET applications.
www.OnBarcode.com
Read QR Code JIS X 0510 In Visual C#
Using Barcode scanner for Visual Studio .NET Control to read, scan read, scan image in .NET applications.
www.OnBarcode.com
Most systems do tell users when their accounts were last used, but with the exception of one or two systems, most of those I've seen also allow users to ignore this information altogether - so they normally do. For example, a system that requests verification might show the user something like this:
Encoding Barcode In C#.NET
Using Barcode generator for .NET framework Control to generate, create barcode image in .NET framework applications.
www.OnBarcode.com
Scanning Barcode In C#.NET
Using Barcode recognizer for VS .NET Control to read, scan read, scan image in VS .NET applications.
www.OnBarcode.com
Account SMITH Password XXXXXX Welcome John Smith. You have new mail. Last Logon Jan. 11, 1985 - - Verify Y
QR Code ISO/IEC18004 Generation In .NET Framework
Using Barcode encoder for ASP.NET Control to generate, create Denso QR Bar Code image in ASP.NET applications.
www.OnBarcode.com
QR Code JIS X 0510 Generation In VS .NET
Using Barcode printer for .NET Control to generate, create QR Code ISO/IEC18004 image in Visual Studio .NET applications.
www.OnBarcode.com
INNER
Encoding QR In Visual Basic .NET
Using Barcode generation for Visual Studio .NET Control to generate, create Denso QR Bar Code image in Visual Studio .NET applications.
www.OnBarcode.com
Paint QR-Code In Visual C#.NET
Using Barcode printer for .NET Control to generate, create QR Code image in Visual Studio .NET applications.
www.OnBarcode.com
(IRCLE
Barcode Encoder In C#.NET
Using Barcode creation for VS .NET Control to generate, create barcode image in .NET applications.
www.OnBarcode.com
Encode Barcode In Visual C#
Using Barcode creator for Visual Studio .NET Control to generate, create bar code image in .NET applications.
www.OnBarcode.com
An N response to the verify question should close down the account so that the system operator has to reset it. Make it clear to users that when they verify the last log-on time, they are taking responsibility for any damage that may have been done during that session. Verification of account activity won't keep hackers from getting into your system. Nor will it prevent them from using an account, since all they need do is type Y to keep it open. What verification will do is alert you, the users, and the system operators to hacker activity. And once you know that hackers are on your system, you can take steps to remove or change the account and password or to tighten your system security all around. Don't give the hacker any information before he's logged on. Your system should not prematurely give out information that is requested by a hacker (or a user). On some systems, for example, typing HELP before logging on will actually get the hacker to the system's help files. In other cases, the request will only tell the hacker the format for account names or, perhaps, the name and phone number of the person to call if you have trouble. By far the worst thing to do, however, is allow hackers to find out who is logged on at the time. Making this information accessible is like handing them all kinds of accounts and asking them to try and get the passwords - and they probably will try. If possible, you should also hide the make and version of your system. A hacker receives quite a bit of help if your system tells him, MEGACOMPUTER OPERATING SYSTEM, VERSION 18.6.4 before he even has to log on. Don't give the hacker any power before he is logged on. This is an obvious suggestion, but it is not always followed. If your system allows users to do anything before they are properly logged on, it only helps hackers. In one extreme instance, the Inner Circle was able to find out the password of the last person who logged onto the system, because that system allowed users to examine memory cells without logging on. Granted, examining memory requires some technical ability, but high-level hackers often have both the motivation and the knowledge to do such things. There is also another, easier, loophole that is still reasonably common. At least one operating system, TOPS, on a DEC-lO, lets you
EAN / UCC - 13 Maker In C#
Using Barcode generation for VS .NET Control to generate, create UCC - 12 image in .NET applications.
www.OnBarcode.com
Uniform Symbology Specification Code 93 Creation In Visual C#
Using Barcode creation for VS .NET Control to generate, create Code 93 image in .NET framework applications.
www.OnBarcode.com
( HAP T E R
Drawing QR Code In Java
Using Barcode printer for Java Control to generate, create Denso QR Bar Code image in Java applications.
www.OnBarcode.com
PDF417 Drawer In Java
Using Barcode printer for Eclipse BIRT Control to generate, create PDF417 image in BIRT applications.
www.OnBarcode.com
5 EVE N Hake the Host of What You're Got
QR Code Encoder In None
Using Barcode encoder for Online Control to generate, create QR-Code image in Online applications.
www.OnBarcode.com
Making PDF 417 In None
Using Barcode drawer for Font Control to generate, create PDF 417 image in Font applications.
www.OnBarcode.com
type messages to other users without logging on. Thus, a hacker can talk to other users and even set up a remote sysop program if he wants to - all without logging on. This particular system is a little outdated for a corporate computer, but smaller businesses, as well as many schools, are now using it.
Code39 Generation In Visual Studio .NET
Using Barcode generation for Reporting Service Control to generate, create Code 39 Extended image in Reporting Service applications.
www.OnBarcode.com
DataMatrix Creator In None
Using Barcode generation for Font Control to generate, create Data Matrix image in Font applications.
www.OnBarcode.com
Passwords are a basic form of security used by every serious multiuser system. In many cases, passwords are both the system's first and last lines of defense. Judging by my own experiences I would estimate that, if it weren't for password misuse, at least eighty percent of all hackers would never see the inside of a large computer. Here are a few tips on using and assigning passwords. If possible, avoid the use of a single, default password. A default password is one that is given to all accounts when they are first opened. The account owners are then expected to change the default password to a private password of their own choosing. For example, if two different potential users apply for accounts on their company computer, and the computer uses PASS as a default password, both users will be assigned the password PASS. While they are expected to change passwords, users almost never do. And sooner or later, a hacker finds out about the defaults - more often than not through a contact within the company. Hackers know that defaults are seldom changed. In fact, an international mail company that used default passwords became well known for using the password A for most of its accounts. And, when hackers found out about this, of course they used the information. Once they were on the company's system, a few even managed to get high-level accounts that had no default password. The hackers used these high-level accounts to create their own accounts on the mail system.
Universal Product Code Version A Encoder In None
Using Barcode generator for Microsoft Excel Control to generate, create UPC-A Supplement 2 image in Excel applications.
www.OnBarcode.com
Encoding Code 3 Of 9 In Objective-C
Using Barcode generation for iPad Control to generate, create Code 39 image in iPad applications.
www.OnBarcode.com
Be wary of using a predictable method, or pattern, of assigning passwords. Although a systematic method is a much better way to assign
Copyright © OnBarcode.com . All rights reserved.