https://techcrunch.com/2022/03/14/ukraine-hackerone-payments-blocked/

Ukrainian hackers and security researchers say bug bounty platform HackerOne is withholding their bug bounty rewards, in some cases thousands of dollars, and refusing to let hackers withdraw their earnings.

Several hackers and researchers with affected HackerOne accounts said in tweets that HackerOne is blocking payouts, citing economic sanctions and export controls following the Russian invasion of Ukraine in late February, but that the sanctions don’t apply to them.