Bidi override in subject line — visual preview spoofing
subject-contains-bidi-override
What this tier means
High-confidence threat indicator — phishing, impersonation, BEC, or scam pattern. Strong contributor to the trash decision.
How Gorganizer detects this
The subject line contains a Unicode bidi-control character. Attack: Gmail/Outlook/Apple Mail render subjects with native directionality rules, so a subject like `Urgent: \u202Eegassem esaelP` displays as `Urgent: Please message` reversed in the inbox list preview — the user sees reassuring English and opens a message whose raw subject says something different. Companion to the From-header and attachment-filename bidi signals. Legitimate subjects in any language never contain format-control codepoints.
False-positive guard
Every signal in Gorganizer feeds a multi-module score — never a sole verdict. This is a threat-tier signal — it adds a strong contribution to the trash score. The full pipeline still requires convergence across multiple modules + a margin over the safety floor before deletion happens, and Gmail's trash (30-day recovery) is always used — never permanent delete.
About the scoring engine
Gorganizer's scoring engine emits 2,143+ signals across six modules — headers, sender, subject, body, attachments, and structural metadata. Every email is scored by every module independently; the final verdict requires multiple modules to agree and the trash score to beat the safety floor by a margin.
Sacred safety guards — never delete starred emails, replies, calendar invites, receipts/invoices, or attachments — apply unconditionally regardless of any signal.
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