The developer has been "collecting data" since the game's launch but "not immediately enforcing bans." Respawn revealed earlier this month that it was tracking players exploiting the game with third-party devices like "aimbots," "wallhacks" and other exploits that offer advantages to players who use them. The developer's policy changed last Friday, March 21, when it "started banning cheaters in Titanfall."
Those banned from the game will see the message in the screenshot above. They'll still be able to play Titanfall but only with other flagged players.
"You can play with other banned players in something that will resemble the Wimbledon of aimbot contests," an FAQ on the game's official site reads. "Hopefully the aimbot cheat you paid for really is the best, or these all-cheater matches could be frustrating for you. Good luck."
Parties with a banned player will treat each player as banned for that play session. Remove that player from the party, and you'll be able to play with those not flagged as such. Those who believe they've been unfairly banned for cheating can contact Respawn through a dedicated email address available in the FAQ.
To track culprits, Respawn enabled GameBlocks' FairFight, server-side anti-cheating software designed to identify unruly behavior.
"Players' actions are tested against multiple statistical markers to identify cheating as it occurs," the software's description reads. "FairFight crosschecks these indicators using objective server-side reporting tools and takes action when both approaches correlate to cheating. FairFight's graduated penalty system (warning/restriction/suspension) has been shown to effectively suppress and deter 'cheaters' by imposing prompt and appropriate penalties automatically, while simultaneously notifying them that continued misbehavior will result in harsher penalties."
For more on the game, be sure to read and watch Polygon's Titanfall review.