DomainTools Investigations identified a set of malicious domains registered since 01 June 2025 likely linked to the ecrime actor publicly known as PoisonSeed. These domains primarily spoof the email platform SendGrid and are likely attempting to compromise enterprise credentials of SendGrid customers. They display fake Cloudflare CATPCHA interstitials to add legitimacy to malicious domains before […] The post Newly Identified Domains Likely Linked to Continued Activity from PoisonSeed E-Cri...