It's indeed a stupid messaging network, but having seen doctors and lawyers happily exchange documents and other sensitive data about their patients and clients through Facebook and Whatsapp, I wouldn't be surprised at all if it turns out that Twitter is being used for sensitive information as well.
Scanning a document and sending it through mail has been swapped with taking a photo with the cellphone and sending it through Whatsapp, and whoever took the photo very often forgets about it, so we have thousands of people out there with their phones loaded with sensitive data about their clients in the same directories they keep photos of their cats.
Want to get sensitive data about someone? Just know where his doctor/lawyer lives or works, then open a cellphone repair shop nearby and be ready to copy everything when they bring you the terminal for screen/battery replacement or other problems, probably at least twice a year overall.
Scanning a document and sending it through mail has been swapped with taking a photo with the cellphone and sending it through Whatsapp, and whoever took the photo very often forgets about it, so we have thousands of people out there with their phones loaded with sensitive data about their clients in the same directories they keep photos of their cats. Want to get sensitive data about someone? Just know where his doctor/lawyer lives or works, then open a cellphone repair shop nearby and be ready to copy everything when they bring you the terminal for screen/battery replacement or other problems, probably at least twice a year overall.