Skip to main content
ThreatSubject line

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 over 1,800 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.

Ready to clean your inbox?

Gorganizer scans your Gmail with this signal and 1,800+ others, then cleans everything in one click. $4.99 one-time, no subscription.

Get started