I checked my STA rules version and it lists: 2025-08-30
I just did a test involving Elim Garak (from the STA: Deep Space Nine Player Characters module) going up against a Talarian Hook Spider. Garak fired his Disuptor Pistol 1E (type=Ranged, Damage Rating=3, Size=1H, Dmg.Effects=Viscious, Damage Discipline=Security) and he rolled 2, 7s for a success. When clicking the damage button for the weapon, 3 dice were rolled with a result of 1,1,0 = 2 stress. Garak has a Security of 3, so 6 CD should have been rolled. The Talarian Hook Spider has Resistance 1, yet 2 stress was applied in the CT to its Stress/Shld value - no resistance reduction. I did another test where Garak rolled a 13 & 12 for a success and then rolled a CD damage result of: Effect,1,1. That inflicted 4 damage to the spider, which confirms that the Viscious effect was correctly triggerd for +1 stress, but again the 3 CD for his Security were not rolled. Again, no stress reduction of 1 for the Resistance 1.
[Edit] I'm going to do another test where I build a new PC, just to eliminate the possibilit of there being any issue with the Deep Space 9 PCs.
Just a final test with Garak...I added the Resistance 1 effect to the spider in the CT and stress damage was correctly reduced by 1.
So I created a new PC (Jelik the Vulcan) who has a focus in Hand Phasers with a Security 3.
On his 1st attack with the same Disuptor Pistol stats as Jarak, I rolled a 2,4, which did give him 1 momentum, but I pooled it. For Damage, it rolled 3 CD with a result of Effect,1,Effect = 3 stress. Again it didn't roll 3 CD for his Security score. However he did do 5 stress damage, due to the Vicious effect being applied twice for the disruptor.

