Solved

Security System detected an attempted downgrade attack - Account keeps getting locked out

Posted on 2006-07-11
3
9,815 Views
Last Modified: 2013-12-04
This user keeps getting locked out and I do not understand why. She has a black berry too. It gets locked out every couple of mins or so.


????


the event viewers are below. XP Pro w. xp2 and outlook 2003. exchage 2003
Event Type:      Warning
Event Source:      LSASRV
Event Category:      SPNEGO (Negotiator)
Event ID:      40960
Date:            7/11/2006
Time:            9:06:15 AM
User:            N/A
Computer:      ACM-XP003
Description:
The Security System detected an attempted downgrade attack for server exchangeMDB/mail.xxx.com.  The failure code from authentication protocol Kerberos was "The user account has been automatically locked because too many invalid logon attempts or password change attempts have been requested.
 (0xc0000234)".

For more information, see Help and Support Center at http://go.microsoft.com/fwlink/events.asp.

----------------------------------------------------------------------------------------------------------------------------==
Event Type:      Warning
Event Source:      LSASRV
Event Category:      SPNEGO (Negotiator)
Event ID:      40961
Date:            7/11/2006
Time:            9:06:15 AM
User:            N/A
Computer:      ACM-XP003
Description:
The Security System could not establish a secured connection with the server exchangeMDB/mail.xxx.com.  No authentication protocol was available.

For more information, see Help and Support Center at http://go.microsoft.com/fwlink/events.asp.
0
Comment
Question by:ctechsol
3 Comments
 

Author Comment

by:ctechsol
ID: 17081733
user was logged on to two different computers at the same time. it happens after a user has changed the password but has not logged off from previous computers using the old password.
0
 
LVL 5

Accepted Solution

by:
Netminder earned 0 total points
ID: 17118360
Closed, 500 points refunded.
Netminder
Site Admin
0

Featured Post

Find Ransomware Secrets With All-Source Analysis

Ransomware has become a major concern for organizations; its prevalence has grown due to past successes achieved by threat actors. While each ransomware variant is different, we’ve seen some common tactics and trends used among the authors of the malware.

Join & Write a Comment

SHARE your personal details only on a NEED to basis. Take CHARGE and SECURE your IDENTITY. How do I then PROTECT myself and stay in charge of my own Personal details (and) - MY own WAY...
No security measures warrant 100% as a "silver bullet". The truth is we also cannot assume anything but a defensive and vigilance posture. Adopt no trust by default and reveal in assumption. Only assume anonymity or invisibility in the reverse. Safe…
Here's a very brief overview of the methods PRTG Network Monitor (https://www.paessler.com/prtg) offers for monitoring bandwidth, to help you decide which methods you´d like to investigate in more detail.  The methods are covered in more detail in o…
In this tutorial you'll learn about bandwidth monitoring with flows and packet sniffing with our network monitoring solution PRTG Network Monitor (https://www.paessler.com/prtg). If you're interested in additional methods for monitoring bandwidt…

746 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

12 Experts available now in Live!

Get 1:1 Help Now