Read Dark Forrest...
Dark Forest’s main premise was absurdly stupid. In an infinite universe resources are infinite.
from review:
The Dark Forest, Earth is reeling from the revelation of a coming alien invasion-in just four centuries’ time. The aliens’ human collaborators may have been defeated, but the presence of the sophons, the subatomic particles that allow Trisolaris instant access to all human information, means that Earth’s defense plans are totally exposed to the enemy. Only the human mind remains a secret.
I went through many years of SCi Fi fun!
Looks good!