How can a company ensure all emails are encrypted when sent between employees? Learn why Transport Layer Security (TLS) is the industry standard for encrypting email communications—essential for the Cisco Certified Support Technician (CCST) Cybersecurity 100-160 exam.
Table of Contents
Question
A company wants to ensure that all emails are encrypted when sent between employees. Which protocol should they implement?
A. HTTPS
B. FTP
C. TLS
D. SNMP
E. ICMP
Answer
C. TLS
Explanation
Transport Layer Security (TLS) encrypts email communications to prevent unauthorized access.
The protocol that should be implemented to ensure all emails are encrypted when sent between employees is TLS (Transport Layer Security).
TLS is an encryption protocol that secures data as it moves between computers, including email servers. When enabled, TLS encrypts the contents of emails during transmission, preventing unauthorized access, interception, or eavesdropping.
TLS works by establishing a secure connection (the “TLS handshake”) between the sending and receiving email servers. Both servers must support TLS for the encryption to be effective.
Most modern email services and servers support TLS, and it is widely regarded as the industry standard for securing email in transit.
Implementing TLS does not require end users to take any action; encryption occurs automatically when both mail servers are configured to use TLS.
Opportunistic TLS attempts to encrypt emails whenever possible, while enforced or “forced TLS” ensures emails are only sent if a secure connection can be established.
TLS encrypts email communications between servers, safeguarding messages from interception and unauthorized access as they travel across the network.
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