Just encrypt sensitive files before sending then will never have a match.

My 98 Subaru had ignition wires gnawed through twice by pack rats. First time thought it was neighborhood vandals. On third set of ignition wires in 2 weeks was instructed to put hot sauce on wires and used www.cpontaneouscombustion.com hot sauce. On bottle was Caution Notice: Extremely Hot, use sparingly. Avoid contact with eyes and other sensitive areas. I wanted rat poison so did not try it, Hispanic Subaru service counter man thought it couldn’t be that bad and put a drop on his finger and then tongue and then went off for a drink of water saying it was bad. After coating ignition wires rats stayed away from my car after treatment.