Information / Piece / item of information
UsageInformation is uncountable in standard workplace English. Use a piece or item of information for one fact and pieces or items for several.
Information
Use when
You mean facts or details collectively.
Example
“The briefing contains confidential information.”
Piece / item of information
Use when
You need to count an individual fact or detail.
Example
“The form asks for five items of information.”
Quick check
an information, a useful information, informations
Usage note