[Baron Munchausen]

The 'Intelligence Sabotage' project is probably what you're referring to. It's different from Counter Intelligence. While Counter-Intelligence will only stop projects that are working dirctly against your empire, Intelligence Sabotage will just destroy a random project in the enemy's current intelligence projects. These have different relative advantages and disadvantages.

Counter Intel has to outspend the attacker to work, for example, but is guaranteed to be working against projects directed against you. Intel Sabotage has to outspend any Counter-intel the enemy is putting up, but if he's spending a lot to attack you that might be very little. It can destroy anything, not just projects directed against you.