Access is terminated but the clearance remains intact until it naturally expires as some folks end up working for other government agencies/contractors and some conditions allow reactivation of the clearance for a specific set of access....the clearance says one has been vetted for access - the specific job determines the actual allowed access and that is entered by the agency currently employing the individual...between assignments, many have their access turned off and then it can be turned back on by the gaining agency if/when needed for the actual job. When one leaves the job, access is "turned off" so anyone allowing access would be breaking the law....here's hoping their access was terminated when they left and nobody allowed them access since....
Give all that has taken place, want to place a bet their access was not turned off?