Section: INFORMATION SECURITY PROGRAM MANAGEMENT
Explanation

Security incidents are configured to capture system events that are important from the security perspective; they include incidents also captured in the security access logs and other monitoring tools. Although, in some instances, they could wait for a few days before they are researched, from the options given this would have the greatest risk to security. Most often, they should be analyzed as soon as possible. Virus signatures should be updated as often as they become available by the vendor, while critical patches should be installed as soon as they are reviewed and tested, which could occur in 24 hours.

Explanation/Reference:
Explanation:
Two-factor authentication requires more than one type of user authentication. While biometrics provides unique authentication, it is not strong by itself, unless a PIN or some other authentication factor is used with it. Biometric authentication by itself is also subject to replay attacks. A symmetric encryption method that uses the same secret key to encrypt and decrypt data is not a typical authentication mechanism for end users. This private key could still be compromised. SSL is the standard security technology for establishing an encrypted link between a web server and a browser. SSL is not an authentication mechanism. If SSL is used with a client certificate and a password, it would be a two-factor authentication.