I took a screen shot of this to ensure that you don’t get any drive by links from it, but this is typical of the scare and snare advertising made possible by the relatively abysmal level of security practiced by most health information custodians.
Also highlights why auditing, logging and transparency with respect to health data are important issues. Auditing and logging are relatively well understood in IT, but transparency is a new concept - especially for security practitioners.
If a public ledger is a transparency tool allowing organizations to prove that they are doing what they say are doing, the question will be how do you provide that transparency will providing appropriate security and privacy safeguards with respect to the underlying personal data/