Interact with the Bounty Board near the Market in Ord Mantell. It says:
Unsafe Safe Houses
Ord Mantell Military Database activated
Military intelligence has recently learned the location of several separatist safe houses. These facilities are hubs for the illegal transfer of military secrets and must be neutralized. The Ord Mantell authority will compensate freelancers who are able to successfully shut down these safe houses. Thank you for your continued cooperation with the Ord Mantell Military operations.
This will begin the mission "Unsafe Safe Houses", a level 5 quest. Open your mission log for full details:
Unsafe Safe Houses
The Republic military is offering a bounty for neutralizing separatist safe houses used for transferring stolen republic data. Locate the Separatists' sage houses in Talloran village, and shut down the datalinks feeding their networks.
Your tasks are:
Disable Separatist Datalink Alpha
Disable Separatist Datalink Bravo
Head to Talloran Village to the east of Fort Garnik. Open your map to find the location of the data links Kill Separatist forces there and fight your way through to the separatist datalinks. Both of them are in the east part of Talloran village. The first one is in the center, and the second one in the north.
Once you have disabled both datalinks, your quest log updates:
You have disabled the separatist datalinks, but their data network remains operational. Locate and neutralize the datalink hubb on the Mirrian Peninsula north of Talloran Village to permanently shut down the separatist data network.
Your objective now is to neutralize the Datalink hub. Go northeast from the Talloran Village, and find a big building. Kill the Separatist Lookouts to unlock a new bonus mission:
Stop the Raiders
Separatists guard a relay hub on an island northeast of Talloran Village. Cut down the Separatist raiders, Lookouts, and Sentinels there to weaken their grip on the area.
Kill 10 of those separatist forces to complete the bonus mission.
Enter the Separatist Relay Hub. There will be a boss there, a Separatist Raider Chief. Defeat him. Then interact with the Separatist Datalink Satellite Controller:
This safe house is equipped with a military grade listening device, tapping into transmissions sent from Fort Garnik. The Separatists must listen in on Fort Garnik from here, then distribute information to the other Safe Houses. You should let the communications officer at Fort Garnik know.
Your task now is to speak to Communications Officer Sulan in Fort Garnik. Quick Travel to Fort Garnik. Talk to Communications Officer Sulan. You ask him if he is in charge of communications and tell him you have found a relay at a separatist safe house - they were tapping his signals. He says he thought they had put a stop to that a month ago. He will red flag all recent transmissions, make sure nothing major leaked. He thanks you for what you did, he owes you one.
You receive an Ord Mantell commendation. This completes the mission, Unsafe Safe Houses.