Question

Leveraging an open SMTP service to send unauthorized email messages is called __. Most new systems have provisions in place to prevent this from happening, but many older server systems do not.

Answer 1

Email spoofing is the act of leveraging an open SMTP service to send unauthorized email messages. New systems have provisions to prevent this, but older server systems may lack security measures.

Step-by-step explanation:

Leveraging an open SMTP service to send unauthorized email messages is called email spoofing. Email spoofing is a technique used by attackers to send emails that appear to be from a different source than they actually are. By using an open SMTP service, attackers can alter the email header to make it seem like the email is coming from a trusted source, allowing them to send unauthorized messages.

Many new systems have implemented security measures to prevent email spoofing, such as email authentication protocols like SPF (Sender Policy Framework), DKIM (DomainKeys Identified Mail), and DMARC (Domain-based Message Authentication, Reporting, and Conformance). These protocols help verify the authenticity of the email sender and prevent unauthorized usage of SMTP services.

However, older server systems may lack these security measures, making them more vulnerable to email spoofing attacks. It is important for organizations to regularly update their server systems and employ proper security measures to mitigate the risk of unauthorized email messages.