Deploying multifactor authentication adds extra layers of security by requiring users to provide multiple forms of verification before accessing resources, such as a password and a one-time code from a device. This significantly reduces the risk of unauthorized access even if a password is compromised. Requiring regular password changes and enforcing complexity rules can help but may lead to user frustration and weak security practices like writing down passwords. Single sign-on improves user convenience but does not necessarily increase security by itself.
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Cisco CCNA 200-301
Security Fundamentals
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