I purchased a license for the Atomic mod_security ruleset because let's face it, the OWASP rules are waaaay to restrictive for anyone running WordPress. However, when I go to Tools & Settings -> Web Application Firewall it's not even one of the listed options.
Hi,
Atomicorp rule-set for ModSecurity on Debian 9 (Stretch) and Ubuntu 18.04 has been introduced in Plesk Obsidian 18.0.21.0, which will be released soon.