In the moment the secchk package is started via cron from a separate crontab /etc/cron.d/seccheck. This works only on machines which are running during the night. Missed secheck runs are not maked up.

I would suggest to include the secheck runs instead of /etc/cron.d/ in the /etc/cron.{daily|weekly|monthly} structure. In this case missed secheck runs are executed if the {daily|weekly|monthly} jobs are executed.

I'll append a simple script which does the job. It is stored in /etc/cron.daily and symlinked (with different names to make sure that daily|weekly|monthly jobs can run at the same time.)

#!/bin/bash

StartDir=$(dirname $0)
if [ $StartDir == "." ]; then
        StartDir=$(pwd)
fi
DirName=${StartDir##*/}
Time_Ext=${DirName##cron.}

test -x /usr/lib/secchk/security-control.sh && /usr/lib/secchk/security-control.sh $Time_Ext

./cron.daily/seccheck
./cron.monthly/seccheck.monthly -> ../cron.daily/seccheck
./cron.weekly/seccheck.weekly -> ../cron.daily/seccheck