The “nonce verification alert” you are encountering is likely appearing because the nonce, a security token used to protect against cross-site request forgery (CSRF) attacks, has expired. This expiration has occurred because the website you are interacting with was opened a long time ago.
A nonce, which stands for “number used once,” is a random and unique value generated by a website when a user performs certain actions, such as submitting a form or initiating a transaction. It is then included in the subsequent request to confirm the authenticity and origin of the request.
The expiration of the nonce is a security measure designed to prevent certain types of attacks. When a nonce is generated, it typically has a limited lifespan, after which it becomes invalid. This ensures that even if an attacker manages to obtain a nonce, they cannot use it to carry out unauthorized actions on the website after the nonce has expired.
In your case, if you are encountering a nonce verification alert due to the nonce’s expiration, it means that you took a significant amount of time to complete the action on the website. The nonce you initially received when you opened the site has become invalid due to its expiration, and the website’s security system is alerting you to this issue.
To resolve this, you may need to refresh the page, restart the action, or in some cases, log in again, which should generate a new, valid nonce. This ensures the security of the website and protects against potential CSRF attacks.