Can you show me where CCP advertises high security space as a secure space? As far as I’ve seen, they only say it is a space with different engagement rules.
Consent to PvP
You consent to PvP when you click “undock”.
You are not safe in 1.0 security space. CONCORD is there to punish, not to protect. Get used to the idea.
In most cases, the only way to be 100% safe from aggression inside the game is to be docked in a station. Being cloaked in a secret safespot could work too.