It's been probably answered few times but I couldn't find it so there it is:
How is cloak on a planet matched against player's scan? Is it 1:1 (meaning that planetwith cloak of 1000 can be found by players with scan 1000+) or is it different?

It can be found if the players scan is greater then the planets cloak.

Thx. I was hoping that it would have to be 2x or 3x the cloak number. Oh well, I better start upgrading than.

idk what the maximum scan is right now but if you can get a planet's cloak above that number then the only way for it to be found is if it is hacked from you.