Certified Incident Handler (CIH) Practice Ecam

What tool helps verify email validity during the investigation of an email security incident?

1. Spamhaus

2. ZeroBounce

3. Mailgun

4. SendGrid

The correct answer is: ZeroBounce

The tool that is particularly effective in verifying email validity during the investigation of an email security incident is ZeroBounce. This service specializes in email verification by checking email addresses against a variety of databases to determine their validity, separating legitimate emails from invalid or disposable ones. ZeroBounce not only identifies whether an email is still active but also provides additional insights, such as whether the email is associated with a temporary service, and helps reduce the risk of bouncing emails during communications. This is crucial during an email security incident, as verifying the legitimacy of senders and recipients can aid in identifying potential phishing attempts or malicious communications. The other tools mentioned, while having their own unique functionalities—like Spamhaus, which is more focused on blocking known spam sources, and Mailgun and SendGrid, which are more geared towards email sending and delivery services—do not specifically emphasize the verification of email validity in the same manner that ZeroBounce does. Thus, ZeroBounce stands out as the go-to tool for validating emails in the context of an investigation.