Attachment filename mixes Latin with Cyrillic/Greek (homograph)
attachment-filename-mixed-script
What this tier means
High-confidence threat indicator — phishing, impersonation, BEC, or scam pattern. Strong contributor to the trash decision.
How Gorganizer detects this
An attachment filename contains BOTH an ASCII Latin letter AND a Cyrillic or Greek letter — e.g. `invoiсe.pdf` where the `с` is Cyrillic U+0441, not Latin `c`. Rendered by every mail client the filename reads as `invoice.pdf`, so the user clicks what they think is a familiar PDF while the actual file may be a malware carrier, an auto-mounting ISO, or a completely different file type. The mixed-script constraint is the precision key: a pure Cyrillic filename from a Russian user (`договор.pdf`, all Cyrillic) does NOT fire because no ASCII letters are mixed in. Only the deliberate spoofing shape triggers. Weighted at +5 — high-confidence deception with zero legitimate use.
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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