BITLOCKER SECURITY.

I now am using bitlocker. I want to know an expert's opinion of how secure it is. I am NOT worried about a "professional" hacker, only people that have some knowledge of computers. Am I safe from a knowledgable computer person that wants to get into my drive or would that take a high level hacker?
Need-a-ClueRESEARCHERAsked:
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*** Hopeleonie ***IT ManagerCommented:
Bitlocker is more secure if you have a TPM chip. We use Bitlocker on our company and it is very safe.

More info:
http://technet.microsoft.com/en-us/library/cc732774.aspx
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Matt DDomain ArchitectCommented:
To secure Bitlocker requires the use of a TPM, configured with Safe Boot to prevent unauthorized boot media.  

Windows 8 OS's with UEFI and TrustedBoot can further secure the boot process.

Group / Local policy can be used to lock down settings and configure the storage of encryption keys.
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McKnifeCommented:
"people that have some knowledge of computers" have no chance to get in. Only if you see yourself as the target of some professional, you would need to start worrying - then we would have to look at what type of key you are using.
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Need-a-ClueRESEARCHERAuthor Commented:
EXPERTS, thanks so much for your valuable advice!
McKnife, your comment was exactly what I was hoping to hear. The key I am using is over 25 characters using letters and numbers.
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McKnifeCommented:
One thing: this is a password that you use for preboot authentication? Or do you mount a data volume while windows is already running? Preboot authentication is recommended.
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Need-a-ClueRESEARCHERAuthor Commented:
I only know how to do it one way. I am NOT well versed in Bitlocker. When windows is running I hook up the external drive that I need protection on. As soon as windows recognizes that the drive has been added it tells me that it needs the bitlocker p/w. I enter the p/w and I am into the external drive.
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McKnifeCommented:
It should be noted that while windows is booted, keyloggers could record the password.
However, possible attackers would need to install that keylogger, first.
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