Template:Page security extension disclaimer 2021
MediaWiki was not written to provide per-page access restrictions.
Extensions that provide additional restrictions can help with security, but can also just appear to be secure, which could lead to exposure of confidential data. Neither the developers nor the Wikimedia Foundation are responsible for anything being leaked. By using this extension or extensions of this nature, you agree to indemnify the aforementioned parties and hold potential negligence by developers harmless. This message is added automatically to all extensions of this nature and may not reflect the actual security status of this extension. For further details, see Security issues with authorization extensions