SuperMailer Abuse Explodes, Now Responsible for 14% of All Credential Phish Discovered in Inboxes

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						<p>By: Brad Haas&nbsp;<br />&nbsp;<br />In early 2023, an increasing number of credential phishing URLs in emails reported to the Cofense Phishing Defense Center (PDC) have included a unique string showing that they were produced by a legitimate email newsletter program named SuperMailer. The inclusion of the string is a mistake threat actors made when crafting their email templates in SuperMailer. The error occurred in a small subset of what has turned into a high-volume credential …