How bad is exposing valid user names?



Today like many other times in the past, signed for a new service and got a common error message: Your user name or password is invalidThis time I am wondering how useful it is to notify "invalid password OR user" versus a less common but more useful two message schema with the real problem: "unknown user", "invalid password"My thought was that a system that does not specify if the user name is valid, could be more secure because it will not expose valid user names. However, how practi

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Related to : How bad is exposing valid user names?


How bad is exposing valid user names?
Category : Information Security
Today like many other times in the past, signed for a new service and got a common error message: Your user name or password is invalidThis time I am wondering how useful it is to notify "invalid password OR user" versus a less common but more useful two message schema with the real problem: "unkno

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How bad is exposing valid user names? - ?
Category : Programming Languages
Today like many other times in the past, signed for a new service and got a common error message: You username or password is invalidThis time I am wondering how useful it is to notify that "invalid password OR user" versus a less common but more useful two message schema with the real problem: "un

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Exposing Type Names to end User...
Category : Development
Is there any way to allow the user to view type member names and/or thier
values, such as....
I am developing an application to create dynamic excel charts off of
predefined queries in an XML file, The has an element with three attributes,
ChartName, SQLString, and ChartType.

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A Reg expr that can match valid user names
Category : Programming Languages

hello.
I am learning how to write php scripts and I am a novice at this. Although this question has nothing to do with php scripts.
I need to find a reg expr to match a valid name. the rules for this are:
The name may contain nothing but letters, whitespace, hyphens(-), apo

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method to convert form names to valid JavaScript names?
Category : Javascript

i am processing an object in JavaScript that has been returned from an API that may contain variable names that are not valid JavaScript variable names. (these names are valid in the naming convention of the system of the API i am using)


in one case, the name starts with a number, e.


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Illegal characters in database names, table names, user names...
Category : Development
Im developing a simple proof-of-concept Web application, more as a
personal programming exercise than anything else, that presents the user
with a login form where they can type in a database name, username, and
password. I then present them with a text field to type in SQL queries,

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Illegal characters in database names, table names, user names... :-
Category : Development
Im developing a simple proof-of-concept Web application, more as a
personal programming exercise than anything else, that presents the user
with a login form where they can type in a database name, username, and
password. I then present them with a text field to type in SQL queries,

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for those who are exposing user cotrol to com
Category : Programming Languages
besides setting all those check boxes as registering for com interop and making com visible checkbox to be true...
once u ahve done all that and tested on ur machine and u want to deply to another machine do the following
regasm /code [your dll filepath] /tlb:[directory where your dll is l

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Exposing controls within a Web User Control
Category : ASP & ASP.net
HiI've just started using web user controls, and I'd like to know if it's possible to change elements dynamically from within other pages?

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Exposing event in user control
Category : Development
I have an aspx page that contains a usercontrol. The usercontrol is titled
authorize. authorize contains 2 panel login and logout. Both are by
default not visible
I want to set one of them, dependingn on whether the user IsAutheticated
(forms), to visible.
Whe I put the foll

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