If you think it might be real, contact the supposed sender via a fresh email or phone call—never reply to the suspicious message. 4. What to do if you already clicked

The phrase "now" pressures you to act before thinking.

Below is a helpful guide (a "white paper" style summary) on how to handle this specific threat. Security Brief: Identifying "Large File" Email Threats 1. The Anatomy of the Hook

Listing a specific size like "156.07 MB" makes the email look like an automated system notification (like Dropbox or WeTransfer), adding a false sense of legitimacy. 2. Why 156 MB?