I would like to see someone take legal action against these toddler engineers and management at black arrow. Perhaps that guy who is out 25k? Keep us posted.
I have no doubt that most people can take legal action or petition againsts BA just only with compromised support portal and customers email list.
Since, BA support portal has been compromised, I am sure that someone has access to customers' banking details etc as BA would request customers to provide banking information for refund purpose. This is a huge crisis and corporate negligence in online trading.