User Tools

Site Tools


clt_email_legitimacy_checklist

This is an old revision of the document!


see last modified date at base of all pages

CLNT - EMAIL - SEC - How to check if an email is legit or phishing



Sir David — here’s a clean DocuWiki edit-page version tailored for all incoming emails (includes your two “Am I expecting…” checks). Paste directly into your wiki.

```

Quick Email Legitimacy Checklist (For All Incoming Emails)

Audience: End users.\ Purpose: 60-second decision guide for any email you receive.\ Last updated: @@2025-10-17@@


0) Hard Stops — If any are true, **stop** and report

  • Asks for passwords, 2FA codes, remote access, or confidential data.
  • Urgent payment / bank change / gift cards / crypto.
  • You were not expecting this email or request.

1) Expectation Check (first, 10 seconds)

  • Am I expecting anything right now?
  • Am I expecting anything from these people/company?
  • Do I actually have an account or relationship with the named company?

If No to any → treat as suspicious and go to 8) If Suspicious.


2) Sender Check

  • Display name matches someone you know or a real department.
  • Email address uses the real domain (no look-alikes like `rnicrosoft.com`, no extra words).
  • Reply-To matches the From address (no domain switch).


4) Attachments

  • You were expecting an attachment from this sender.
  • Block risky types: `.exe .js .scr .bat .ps1 .vbs .iso .img .zip .html .htm`
  • Office/PDF should not ask to “Enable Content/Macros”.

5) Language & Look

  • Uses your correct name and specific details you recognise.
  • No threats, pressure, giveaways, or too-good-to-be-true offers.
  • Branding looks normal (not blurry; footer/legal details look standard).

6) Mail Client Warnings

  • No “External Sender” or “SPF/DKIM/DMARC failed” banners.
  • Not auto-flagged as suspicious by your mail client.

  • Open the website/app yourself from a saved bookmark or by typing the address.
  • Call/message the sender using a known number/channel (not the email’s number/link).
  • For payment/bank-detail changes: perform a voice check with your contact.

8) If Suspicious

  • Do not click. Do not reply. Do not forward (except to IT/security).
  • Use “Report phishing” in your mail app, then delete.
  • If you clicked or entered details: change password, enable MFA, notify IT/bank, run a malware scan.
  • Optional: forward a copy to reportphishing@apwg.org or report at Scamwatch (ACCC).

9) One-Minute Flow (print-friendly)

  1. Expecting? → From these people? → Account exists?\
  2. Check From + Reply-To domain → Hover every link → Attachment type safe?\
  3. Read tone/grammar/branding → Client banners OK?\
  4. Verify via bookmark/known number → If doubt, report and delete.

Notes for Admins (optional)

  • Add your internal report address here: security@yourdomain.tld\
  • Add your policy page link here: Email Security Policy\
  • Train users to screenshot headers when reporting.

```

clt_email_legitimacy_checklist.1760648897.txt.gz · Last modified: by thesaint