The 8 new bounties can be collected by killing different enemies spread across different locations in Destiny. When you claim a bounty, you'll be rewarded with Grimoire. There will often be Weekly Bounties that offer extra rewards for claiming a spotlighted enemy, and these 8 new bounties are likely to appear in the Weekly Bounties for the House of Wolves expansion over the next couple of months.
The first new bounty is Wolf Enforcer and this can be found in the Devils Lair Strike. The second bounty is Silent Fang - this one can be located in the Forgotten Shores. The final bounty in the Patrol Cosmodrome is Queenbreaker Captain and this bounty can be found at Dock 13.
For Patrol Venus bounties, The Ether Runner can be found in the same place The Gate Lord was originally found and there's also the Repeater Shank which is in the first spawn area for the Nexus Strike. There's one bounty near the Vault of Glass entrance at Campus 9 named Wolf's Guard.
Finally, the Patrol Moon bounties include the High Servitor and the Twisted Claw, both of which can be found in The Summoning Pits.
In other news, Bungie has made subtle hints towards cheaters, stating that they are "always watching." They haven't threatened to get the banhammer out yet, but it could certainly be coming to those who aren't playing by the rules, especially in the Crucible.