Sources sometimes share useful information they are unwilling to attach to their names. On background generally means the information may be published but without naming the source; a description such as “a senior official” may be allowed by agreement.

Exact definitions vary by newsroom and by country. Some treat “on background” as equivalent to not-for-attribution; others draw finer distinctions. The safe practice is to confirm the precise terms with the source before relying on the material.

Background information helps reporters understand events and verify other accounts. Overuse of unnamed background sources can weaken a story’s credibility, so editors push for on-the-record confirmation whenever possible. When background attribution is used, the description of the source should give readers as much context as the agreement permits.

• Information usable without naming the source
• Terms should be explicitly agreed in advance
• Helps reporting but reduces transparency
• Best paired with on-the-record confirmation when possible