fight fire with fire

US /faɪt ˈfaɪər wɪð ˈfaɪər/
UK /faɪt ˈfaɪər wɪð ˈfaɪər/
"fight fire with fire" picture
1.

combater fogo com fogo, pagar na mesma moeda

to use the same methods as your opponent, even if they are unpleasant, in order to achieve a victory

:
When they started spreading rumors, we decided to fight fire with fire and expose their lies.
Quando eles começaram a espalhar rumores, decidimos combater fogo com fogo e expor suas mentiras.
Some argue that to deal with cyberattacks, you sometimes have to fight fire with fire.
Alguns argumentam que, para lidar com ataques cibernéticos, às vezes é preciso combater fogo com fogo.