Again, I am more than happy to report it proper channels. I understand the reasons of ethically reporting such issues.

I would really appreciate it, can you help me find correct channel even now for Emirates, Lufthansa, KLM, Air-France ?

I will write it here for you - "In the wake of responsible behaviour, on discovering these serious security flaws that violate user-data privacy, I decided to flag them to Emirates through Twitter DM in October 2017. Please note that I could not find a dedicated channel for reporting security bugs on Emirates website.

The Social Media Team immediately responded to my Twitter DM with a canned response but I was not ready to give up hope. I also wrote an email to the Product Manager highlighting the security flaws. I was met with a deafening silence."