In response to a subpoena, Signal foundation provided law enforcement with the date of account creation and last date of access. https://signal.org/bigbrother/

In response to a subpoena, Signal foundation provided law enforcement with the date of account creation and last date of access. https://signal.org/bigbrother/central-california-grand-jury/ https://signal.org/bigbrother/central-california-grand-jury/ The subpoena asks for "all correspondence with [these] users". I am not a lawyer, so I don't know if that gave enough wiggle room for Signal to not provide metadata, or if they don't store it in the first place.