Google Answers Microsoft :Chrome Frame is safe.

So I looked at the NSS Labs methodology and how they define a successfully blocked connection:

The resulting response is recorded as either “Allowed” or “Blocked and Warned.”

• Success: NSS Labs defines “success” based upon a web browser successfully preventing malware from being downloaded, and correctly issuing a warning.

• Failure: NSS Labs defines a “failure” based upon a web browser failing to prevent the malware from being downloaded and failing to issue a warning.

So if malware was blocked, and the user not notified, this would imply that the test failed.

Tip to invoke Chrome Frame in IE (for eg)

    cf:http://www.google.com

Any bets on when the patch arrives that "accidentally" makes the Chrome plugin 4 times slower?