Yes, and the stakes are higher than for typical content sites because distributor PII plus financial data raises the threat profile. Production MLMs on WordPress need: managed hosting at the Kinsta or WP Engine class (shared hosting is not viable for production MLM), a security plugin like Wordfence or equivalent, a WAF in front (Cloudflare's pro tier or similar), 2FA on all admin and distributor accounts, weekly backups verified by restore test (a backup that hasn't been restored is a hope, not a backup), and prompt patching. The investment is roughly $200 to $500 per month all-in for the security stack; this is a real line item, not optional.