This is what I wrote a few days ago. Had knowledge about it since last few months.
https://defence.pk/pdf/threads/paf-...ness-of-air-power.620515/page-5#post-11498227
Now that the information is out, the civilian doctor (not a medical one) did a lot of damage.The kind that gets you a million plus dollars. You can compare his treason to the likes of klaus fuchs e.t.c.
From what I heard, the way he was caught showed us the major loopholes in counter-intel which could have been easily plugged by timely data sharing of financial transactions by banks with our intel org. I hope SPD, ISI e.t.c have learned their lessons.
Another reason that strategic organizations need to implement and enforce the policy that none of their employees or their children/spouses can go abroad especially to western countries without permission/vetting (except for hajj or for china and some other countries) while they are still serving in that org and even after 5 years.
Their is a policy like that but I don't think it is strictly enforced as plenty of my friends/neighbours and their parents are living abroad (knew them from the time when my family served in such org). I am not saying that my friends and their parents were traitors but why take the risk?