Assume goodwebsite.com contains a valid DKIM record but does not have a SPF record. Can attackers obtain legitimate emails and re-send the same emails multiple times from their own server? Provide 1-2 sentence explanation.
Question
Assume goodwebsite.com contains a valid DKIM record but does not have a SPF record. Can attackers obtain legitimate emails and re-send the same emails multiple times from their own server? Provide 1-2 sentence explanation.
Solution
Yes, attackers can potentially obtain legitimate emails and resend them from their own server. This is because SPF (Sender Policy Framework) records are used to prevent email spoofing by verifying the sender's IP address. Without an SPF record, the receiving mail server has no way to check if the incoming email is actually from the domain it claims to be from. DKIM (DomainKeys Identified Mail) alone is not enough to prevent this, as it only verifies that the email was not altered in transit, not the origin of the email.
Similar Questions
Consider the case that the admin of goodwebsite.com hosts the email server at 1.1.1.1 and add the 1.1.1.1 into its SPF record. Later on, the admin decide to host the email server to 2.2.2.2, but forget to remove the 1.1.1.1 IP address in the SPF record. Assume goodwebsite.com does not have DKIM record. Can attackers obtain 1.1.1.1 and send emails on behalf of goodwebsite.com? Provide 1-2 sentence explanation.
SPF and DKIM are stored in the TXT fields of DNS records. Group of answer choicesTrueFalse
A spoofed email is one that appears to originate from one source but actually has been sent from another source26partially correctwrongrightnone of the above
What is the term used when a malicious party sends a fraudulent email disguised as being from a legitimate, trusted source?
Which of the following is an example of a “phishing” attack?ASending someone an email that contains a malicious link that is disguised to look like an email from someone the person knowsBCreating a fake website that looks nearly identical to a real website in order to trick users into entering their login informationCSending someone a text message that contains a malicious link that is disguised to look like a notification that the person has won a contestDAll of the Above
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