Autonomous Swarm of U.S. Navy Ships

"During a two-week demonstration in August, as many as 13 patrol boats
and other vehicles outfitted with the CARACaS sensor and software kit
worked in concert—either autonomously or by remote—on the James River in
Virginia, escorting a high-value vessel (in this case, the researchers’
ship, the Relentless), which is and then surrounding a mock enemy ship
when it appeared. Although the purpose was to demonstrate the boats’
ability to swarm, boats operated by remote could have fired on the
intruding ship as well,"

(Source: The U-S Navy)

Yes, I know it sounds robot-phobic, but let's make sure hacking is impossible.....