Inboxfuscation Tool - Threat analysis report by cyberdudebivash

1) Executive summary What it is: Inboxfuscation (observed name for an emerging tool/technique) is a family of obfuscation/evade-detection techniques and toolsets abused by threat actors to hide malicious activity inside email/inbox flows and email-centric workflows. Attackers use it to: conceal phishing payloads, hide exfiltration over email channels, and evade email gateway scanning and endpoint detection. Immediate risk: High for organizations relying on email as an integration/backchannel (ticketing systems, automated reports, cloud alerts). Effective against poorly configured Secure Email Gateways (SEGs) and unmonitored API-driven mail flows. Who’s impacted: Enterprises, MSPs, SaaS platforms that accept or process automated email (inboxes used as workflow triggers), healthcare, finance, and critical infrastructure — anywhere email triggers actions or stores attachments. Top-line recommendation: Treat inbound/outbound email and automated inbox workflows as networked i...