What seemed to be interesting from the email addresses disclosed is that there are a hell of a lot of people engaged in finance, investment or trading of one sort or another.
There are a few there with enough emails for it to be relatively widespread within the institution: Scotiabank, JPMorgan, KKR and Jeffries stand out -- Scotiabank has hundreds of emails, I imagine they're having a bad week. Also a lot of energy stuff, Aramco, Total.
I don't think a banks email being there indicates they use the service, more likely a customer of theirs uses TeleMessage and as a result the comms between that bank customer and the bank are in the breach
Since TeleMessage is not really signal but just a front the israelis want your email to signup (its mostly an enterprise service, so you either pay and they know who you are already) etc
There are a few there with enough emails for it to be relatively widespread within the institution: Scotiabank, JPMorgan, KKR and Jeffries stand out -- Scotiabank has hundreds of emails, I imagine they're having a bad week. Also a lot of energy stuff, Aramco, Total.