Observed arrival · 2026-10-06
its-a-trap, an evidence card for suspicious email
A Korean-language Chrome extension that checks sender domains in Gmail and Naver Mail for impersonation signals, then shows a risk rating and its evidence.
- For
- Korean-speaking small-business owners using Gmail or Naver Mail
- Worth noticing
- It checks 90 public, research, and university institutions and explicitly warns that “no clear signal” is not a safety guarantee.
Field notes
The page says the extension compares a sender’s domain against 90 public agencies, research institutions, and universities, then surfaces evidence such as registration age and SPF/DMARC settings. Its privacy explanation distinguishes routine checks from escalations: a suspicious result can trigger a sender-address lookup, while sharing a message for human review requires the user to press report and consent. It also spells out where detection can fail, including compromised legitimate accounts.
Observed signals
Read the marks
Editorial observations of this landing page, not a rating.
One card from the complete issue