No, ADS-B Exchange does not accept owner and operator requests to filter flights, aircraft, or fleets. ADS-B Exchange displays unmanipulated flight activity and information of all aircraft that broadcast ADS-B or Mode S.
Operators and owners looking to limit the display of their flight activity may apply to the FAA’s Privacy ICAO Aircraft Address (PIA) program, which will assign aircraft temporary ICAO aircraft addresses that will display on ADS-B Exchange instead of the permanently assigned address.
Operators of aircraft flying sensitive government missions should coordinate with the FAA per FAA 14 CFR Section 91.225(f).
Isn’t this a security risk?
No. If aircraft do not want to be seen, (such as military or law enforcement aircraft on a mission) they can always turn their transponders “off”, or over to “Mode C”. The position data shown by ADS-B Exchange is available to anyone who can spend $50 on Amazon and put the parts together. It’s not secret. Air Traffic Control voice comms are not encrypted either, and contain similar (or more) information.