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ThreatPhishing & impersonation

Cloud file-share expiry credential phishing — impersonates OneDrive, Dropbox, Box, Google Drive, or WeTransfer with a file-expiry urgency + sign-in CTA at a non-official host. Proofpoint 2025-2026; Abnormal Security Q1 2026; CISA 2026.

cloud-file-share-expiry-credential-phish

What this tier means

High-confidence threat indicator — phishing, impersonation, BEC, or scam pattern. Strong contributor to the trash decision.

How Gorganizer detects this

Phishing emails claiming a shared file or folder on OneDrive, SharePoint, Dropbox, Box, Google Drive, WeTransfer, or Notion is about to expire / be deleted, creating urgency to sign in via a credential-harvesting portal before the deadline. Three-part detection: (1) cloud storage platform brand, (2) file / document / link expiry urgency, (3) sign-in / verify-identity CTA with off-domain link. Proofpoint 2025-2026 documented this as the fastest-growing cloud-storage credential phishing vector; Abnormal Security Q1 2026 confirmed active OneDrive / Dropbox campaigns; CISA 2026 advisory. Distinct from account-suspension or storage-quota signals — specifically exploits the file-expiry urgency.

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.

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