This is what was on my "news" when I came online.

11 hours, 3 mins ago
A deadly virus has been unleashed on Kembalcidd - the outbreak will last for a full day, and prevent popluation growth
11 hours, 16 mins ago
Kembalcidd is under attack!
11 hours, 16 mins ago
A strong ion storm has been unleashed on Kembalcidd - reducing the planet's defenses by 15% for an hour
11 hours, 16 mins ago
An Orbital mass-disruption has been unleashed on Kembalcidd - reducing the planet's attack by 30% for 2 hours

BUT IT NEVER SAID WHO WAS ATTACKING. WHY??? WITH THAT MANY ATTACKS THERE SHOULD HAVE BEEN SOMETHING!!!

Just put a trap on the planet. That's the only way you can find out who's attacking it. Besides losing the planet, obviously. But you don't want that do you ? : )

If you have been attacked (rather invaded) recently and are fairly sure it will resume shortly, what would be the effect of doing a flux on the planet to remove it from the scans of the players attacking it? Would they not be able to resume their attacks?

They would not, because they would not be able to see it if you used a Planet Flux.