3 official rulings from Bandai, last ruled Mar 28, 2024. Straight answers to how this card actually resolves.

I flip over an opponent's Security Digimon during a security check, and this card's inherited effect reduces its DP to 0. Is the Digimon deleted on the spot, without a battle?
No. Even if a Security Digimon is reduced to 0 DP, it still battles with the Digimon performing the security check.
Ruled Mar 28, 2024
This card's inherited effect reduces a Security Digimon's DP to 0, but it has a <Security> effect. What happens?
The <Security> effect activates normally.
Ruled Mar 28, 2024
A Security Digimon has its DP reduced by this card's inherited effect. If that Security Digimon is later played by its <Security> effect, does it still have its DP reduced when it enters play?
No. It's no longer a Security Digimon once it enters play, so it doesn't have its DP reduced by this card's effect.
Ruled Mar 28, 2024
Got a line that uses Taomon? Map it in the builder and share it with a link.
Questions and answers are Bandai's official rulings, collected and translated by the DigimonCardGame Wiki community and reused here under CC BY-SA. Card names and card text are © their respective publishers; Combalo is not affiliated with Bandai.