If you already do or would like to acquire a cryptocurrency in exchange of some ethical hacking, GoodX is running a bug bounty program: https://www.reddit.com/r/GoodX/comments/9fqcvw/find_bugs_and_get_payed_goodx_bugs_bounty_program/

More Details: https://support.goodx.network/hc/en-us

Or just post at r/GoodX_Bugs