ABC Integrity checks each WordPress core file against the official checksums published by WordPress.org. Any file that has been modified, is missing, or cannot be read is flagged immediately in the dashboard — so you can catch tampering, accidental edits, or signs of a compromised site before they become a bigger problem.
Features
ABC Integrity connects to the WordPress.org Core Checksums API when an administrator runs a core file scan. The request sends the site’s WordPress version and locale so WordPress.org can return the matching official checksum manifest.
Service: https://api.wordpress.org/core/checksums/1.0/
Terms: https://wordpress.org/about/terms/
Privacy: https://wordpress.org/about/privacy/