An attack must target a valid, unprotected target within the applicable point range.
The protection ratio is x3 in PVP and x2 for all hostile actions against the Errants. A ratio exactly equal to the limit remains allowed; an attack is refused only when the point spread strictly exceeds that limit.
An attack can therefore be refused if the target is:
- too strong for the limit in that context;
- too weak for the limit in that context.
The limit applies to space and Pillar attacks, Espionage by probe or drone, Hacking, and Resonance Tower shots. For a group attack against an Errant, each player, whether the leader or a joining player, must individually fall within the limit when admitted; the group's points are not added together. Missions already accepted continue as usual.
Example
With 100 000 points, a player can target an Errant with 50 000 to 200 000 points, inclusive. At 49 999 or 200 001 points, the target is outside the limit. An ally outside the limit cannot join, even if the leader is eligible.
An attack cannot target the source planet itself. Another planet belonging to the same player may be targeted if the mission is otherwise valid. These eligibility rules are distinct from the pre-combat protection that may remove a fleet docked at the target (see Pre-combat protection for a docked fleet).

