I think this is the key quote:<p>> "The cheaper we make it to pay that ransom, then the more incentives we’re creating for companies to pay, and the more incentives we’re creating for companies to pay, the more incentive we’re creating for criminals to continue," said Josephine Wolff<p>In an ECON 101 sense, ransomware attackers want to set the price as high as they can such that the victim will pay. A rational victim will consider their tax bill in the cost/benefit calculation. So although giving a tax deduction for ransomware seems like it reduces the burden on the victim, in the long run it just increases the reward for the hacker at the expense of the treasury.