Home Today’s Briefing Deep Dives In Play Trending For You Discover My Stack Saved Off Radar Search

Loading today’s stories

Today

AI-assisted reporting, grounded in a per-article claim ledger. Perspective Coverage and Reality Strip separate source viewpoints from evidence, adoption, hype, incentives, and confidence.

Today

Front Page
Today’s Briefing
Newsletters
Trending
For You
Discover
My Stack
Saved
Off Radar
Search

Sections

Security
Build
Invest
Product
Leadership
Science

Company

About
Mission
How this is made
Evidence Index
The desks
The sources we read
Corrections
Press and brand
The daily edition

Trending now

Coding Agents
Industry self-regulation
Computer-use agents
Cross-Border Payments
Inference cost economics
Open-Weight Model Publishing
Software Supply Chain Security
Agentic Coding Tools
Authentication Bypass Flaws
Frontier model launches

How this is made

Today For You My Stack Off Radar Search

other

Direct Send

Feature allowing unauthenticated internal mail from devices such as printers that cannot safely hold credentials.

Current clusters

security1 distinct publisher

Blank envelope senders carry spoofed internal phishing past Exchange Online's RejectDirectSend

ReliaQuest's tests show Exchange Online accepts unauthenticated mail when the visible From header matches the tenant domain and the SMTP envelope sender is left empty. Forty percent of those messages went to senior leaders.

Publishers:scworld.com

Reality

Evidence48
Adoption42
Hype gap+10
Incentives65

Confidence45

Direct Send — other — Clarity Today