[Suicide Junkie]

That quote happens to be wrong or outdated.

You have to wear out his stored up defenses.
If he's got 12 maxed out CounterIntel III's, then it is possible for him to have 6 Million points worth of defense. (But, it does take many years to build that up)

You have to deplete all of his storage before any of your projects will succeed.
When you attack, you reduce his storage at a 1:1 ratio.
There is also a 20% bonus to defense spending, so if you bLast away with your full capacity on offense, you will wear him down by 80K per turn.

So, at most, you will have to spend 1 turn attacking full-out for every 3 turns he has been building up intel defense.
Once you have broken through, roughly 2/3rds of your attacks will succeed.
To ensure the best ops succeed, spend 40K on quickie projects to eliminate his defense each turn, then throw in the PPP or Crew Insurrection before he gets next turn's supply of indel points.