Microsoft PGP verification of security updates?

Just browsing through the security updates Ive recieved from MS and there appears to be a problem on a couple of them with the PGP key and wondered if it was just me picking it up?

Quote:

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*** PGP SIGNATURE VERIFICATION ***

*** Status: Bad Signature
*** Alert: Signature did not verify. Message has been altered.
*** Signer: Microsoft Security Response Center <[email protected]> (0x3103F52B)
*** Signed: 02/02/2004 06:41:12
*** Verified: 21/03/2004 17:55:06
*** BEGIN PGP VERIFIED MESSAGE ***


*** PGP SIGNATURE VERIFICATION ***
*** Status: Bad Signature
*** Alert: Signature did not verify. Message has been altered.
*** Signer: Microsoft Security Response Center <[email protected]> (0x3103F52B)
*** Signed: 10/03/2004 20:02:18
*** Verified: 21/03/2004 17:55:36
*** BEGIN PGP VERIFIED MESSAGE ***

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This is the response it should show :

Quote:

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*** PGP SIGNATURE VERIFICATION ***

*** Status: Good Signature
*** Signer: Microsoft Security Response Center <[email protected]> (0x3103F52B)
*** Signed: 09/03/2004 18:57:36
*** Verified: 21/03/2004 17:55:19
*** BEGIN PGP VERIFIED MESSAGE ***

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