fight fire with fire
US /faɪt ˈfaɪər wɪð ˈfaɪər/
UK /faɪt ˈfaɪər wɪð ˈfaɪər/

1.
vuur met vuur bestrijden, met gelijke munt terugbetalen
to use the same methods as your opponent, even if they are unpleasant, in order to achieve a victory
:
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When they started spreading rumors, we decided to fight fire with fire and expose their lies.
Toen ze roddels begonnen te verspreiden, besloten we vuur met vuur te bestrijden en hun leugens te ontmaskeren.
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Some argue that to deal with cyberattacks, you sometimes have to fight fire with fire.
Sommigen beweren dat je, om met cyberaanvallen om te gaan, soms vuur met vuur moet bestrijden.