neural interference : halves exp gains for an hour , activates upon being disabled

data scrambler : halves the research gained on the next hourly shipment , activates when hacked

artifact repo : halves the artifact points gained on the next hourly shipment, activates when raided

useless slag : halves the mineral points gained on the next hourly shipment , activates raided

energy sink : halves energy recharge rate for an hour , activates when attacked

shield sink : halves shield charge for an hour , activates when shields are brought down


all effects target the attacker

-1 A bit over the top , and would kill PvP.

KV trap - Limits you to missions and hacking
Haly trap - complete defence for target and wastes energy
Quantum Firewall - Disables you from hacking

These make PvP bad enough. More traps would kill it completely. And tere's some people who'd actively hunt for the interference one, because they WANT to limit their exp gains.