News embargo

[2][3][4] The understanding is that if the embargo is broken by reporting before then, the source will retaliate by restricting access to further information by that journalist or their publication, giving them a long-term disadvantage relative to more cooperative outlets.

Breaking an embargo is typically considered a serious breach of trust and can result in the source barring the offending news outlet from receiving advance information for a long period of time.

The television presenter and former tabloid editor Piers Morgan antagonised other journalists when he intentionally breached a BBC news embargo.

He announced the details via his Twitter account about an hour earlier than the report's indicated time of publication.

Journalists who agree to not publish (in print, on television, on radio, or via Internet) until that time the information contained in a manuscript to be published by the journal receive advance copies of the journal by mail during the week before publication.

A sign at a U.S. National Agricultural Statistics Service briefing on crop production, held at a secure data room where politicians and journalists are briefed on embargoed data two hours before its release
Journalists' mobile phones are locked away at a U.S. National Agricultural Statistics Service briefing on crop production figures before the public release of information at noon.