Just read: https://www.bleepingcomputer.com/news/security/rewards-of-up-to-500-000-offered-for-freebsd-openbsd-netbsd-linux-zero-days/
Rewards of Up to $500,000 Offered for FreeBSD, OpenBSD, NetBSD, Linux Zero-Days Exploit broker Zerodium is offering rewards of up to $500,000 for zero-days in UNIX-based operating systems like OpenBSD, FreeBSD, NetBSD, but also for Linux distros such as Ubuntu, CentOS, Debian, and Tails. The offer, first advertised via Twitter earlier this week, is available as part of the company's latest zero-day acquisition drive. Zerodium is known for buying zero-days and selling them to government agencies and law enforcement. https://twitter.com/Zerodium/status/1012007051466162177