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ThreatPhishing & impersonation

Hyphenated security-verb subdomain (login-X, secure-Y) — phishing-kit URL fingerprint

href-credential-verb-subdomain

What this tier means

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

How Gorganizer detects this

A link href has a subdomain label that combines a security-adjacent verb (login, signin, signon, auth, secure, verify, validate, password, webmail, portal, account) with a hyphen — e.g. `login-microsoft.attacker.com`, `secure-verify.phish.net`, `webmail-portal.xyz/signin`. Real brands never use compound hyphenated subdomains for their login pages: Microsoft uses `login.microsoft.com`, Amazon uses `signin.amazon.com`, Apple uses `appleid.apple.com`, Google uses `accounts.google.com`. All of these are CLEAN single-word subdomains on the brand's own registrable domain. Phishing kits deliberately choose hyphenated compound subdomains because the user's eye reads the URL left-to-right as "microsoft login" while the actual registrable domain is attacker-controlled — the hyphen visually separates what looks like a brand prefix from the real domain. Detection: any label in the host that contains both a hyphen AND one of the security verbs. The hyphen requirement is the key precision move — it excludes legit single-word subdomains (`login.microsoft.com`, `secure.example.com`) while catching the compound phishing shape. Weight: +3 — moderate, pairs with other URL signals rather than solo-triggering. Rare businesses with legitimately hyphenated security-verb names (e.g. `secure-login.com`, `password-manager.com`) may occasionally trip the signal in isolation, but the moderate weight prevents auto-trashing.

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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