Which of the following can lead to a security clearance lapse?

A security clearance lapse occurs when an individual fails to maintain the necessary requirements to keep their clearance active. Reporting foreign travel is critical as it can raise potential security risks or conflicts of interest. If a cleared individual does not report foreign travel, it may suggest a lack of transparency or could indicate potential exposure to foreign influence, thereby jeopardizing their clearance.

In contrast, regular re-investigations and ongoing employment in a cleared position help ensure that all personnel remain trusted and that any issues can be addressed promptly. Successfully completing a probation period further demonstrates an individual's reliability and trustworthiness, which are essential for maintaining a security clearance. Therefore, failure to disclose foreign travel directly impacts an individual's standing and can lead to a lapse in their security clearance.