Ironically, Pompey’s son Sextus, became a very successful pirate for a while.
My uncle Stargell was a very famous pirate.
This was the story as passed around by his enemies. In fact, he was a political and military opponent of Octavian who was based on Sicily and controlled the sea. Part of his strategy was of course interdicting trade and raiding ports.
If I remember correctly, he was eventually defeated by Agrippa, Octavian's most competent commander.