I only learnt about this a few days ago and now the details get worse.

My Health Record is a database about you and your health at first it will have information from "over 700 public hospitals and health services across Australia", "diagnostic imaging and pathology providers".

Who has access to this "There are now tens of thousands of healthcare practitioners, public and private hospitals, community pharmacies and other healthcare providers connected to the My Health Record system, with more joining every day."

This database is by default opt-in everyone is going to be in it. But there is a 3 month period where you can opt-out (people have had trouble trying to opt-out).

http://www.news.com.au/technology/online/security/its-time-to-decide-if-you-want-to-opt-out-of-new-my-health-record/news-story/77dc11f719eab73adcd851145cd2517a

It could be good for some people older people who do not leave Australia.

Like any database it could be hacked if the NSA, Pentagon etc can get hacked how safe will this be with tens of thousands having access.

Scenarios that could effect people just a few.
Young people buying life or travel insurance you forget a minor injury or something the insurer gets access to your file and the first thing they will do is look for something to invalidate the policy.

Older people or young while at a doctors you mention you had a little dizzy spell or something else a while back they put that on the database, now if an insurer or potential employer finds out good luck.

Here is a quote from the person Turnbull help set it up "if he was Australian he would "probably" withdraw from My Health Record."
The reason being that "he took issue with the way My Health Record required users to arrange their own security settings, rather than defaulting to a more private set-up. "I think it's problematic. Those kind of security settings kind of make sense for an opt-in system … but when it becomes an opt-out system, and you find out all your data is on there, 'oh, and by the way it's all being shared', well, no — I think that's one of the flaws,"
http://www.abc.net.au/news/2018-07-18/my-health-record-former-digital-transformation-boss-has-concerns/10006788

And this is supposed to be a liberal government?

I've already opted out but I have no confidence that'll make the slightest difference.

We are told we can opt out, which us what I intend to do.

My records will not be in that database, my small country town Doctor has not got the time or will to put it there, our government has been ill advised by its public service or some such in this matter, in an effort to cut health costs this last week my four annual visits to the Doc went mad, vistit one to get permission for blood test, two to get blood test,three get result of said tests, four permission [type two sugar] to get form filled in so I could get test strips to record sugar , next? report back EACH MONTH and give Doc daily recorded tests results, from 4 a year to? well looks about 14! Turnbull old son! sorry I seem to have lived too long

No doctor can enter your medical information unless you give them your medicare number.
(and even if they have your number, you still have the right to request that they do not place that information online)

I had set up my "health record" long ago so I could write under "allergies" that I am allergic to medicare. If I happen to be unconscious or unable to communicate, then it is important that they know that I refuse to accept stolen money from government.

Should the NSA or the pentagon steal my record, what have I to fear or hide? is there a need to keep secret the fact that I am not a thief?

I cannot see the problem with a national database, it could actually save lives.

For those who are paranoid about privacy, there is none if you want to live in our society. Via tax file numbers, medicare, bank account etc, everyone knows your information already.
it seems the only ones complaining have something to hide.

Try buying wine with your credit card and you get junk mail from wine clubs, buy nappies from Kmart and you get all sorts of junk mail from baby product suppliers. Disclose too much or not enough while applying for a loan, and the bank will tell you what you have missed.

Ask the ATO for an extension on payments and they will tell you, yes/no based on your resent purchases (car , boat, house)

Although none of us like the idea of "Big Brother" knowing all of this, I sleep at night knowing we have a stable government, a police force and army that will protect me, schools and government services close by because of demand and businesses that can make a profit without ripping off the customer (yes I know there is always exceptions)