Thursday 5 November 2009

The database of ruin coming to your town soon.....


Time marches inexorably on and each day government bureaucracy at every level, health services, financial institutions and even retail outlets are all squirreling away information about each and every one of us in data bases both large and small.

Whenever one inquires about the safety of such databases the assurance received usually goes along the line that there is nothing to worry about - a high level of data security surrounds personally identifiable information and, it would be hard to identify individuals from those information blocs held in long-term digital storage (for comparison/research purposes) because the data has been anonymized.

However, this is apparently not the case.
Due to the large number of public databases accessible on the Internet and by application to various institutions/agencies, it really isn't all that anonymous because most information can be mined and/or manually cross-checked.
Thus potentially allowing re-identification of an individual and the information held concerning that person or family.

This is Paul Ohm Associate Professor of Law from the University of Colorado and author of the research paper Broken Promises of Privacy: Responding to the Surprising Failure of Anonymization :

Computer scientists have recently undermined our faith in the privacy-protecting power of anonymization, the name for techniques for protecting the privacy of individuals in large databases by deleting information like names and social security numbers. These scientists have demonstrated they can often 'reidentify' or 'deanonymize' individuals hidden in anonymized data with astonishing ease. By understanding this research, we will realize we have made a mistake, labored beneath a fundamental misunderstanding, which has assured us much less privacy than we have assumed. This mistake pervades nearly every information privacy law, regulation, and debate, yet regulators and legal scholars have paid it scant attention...

In an Ars Technica post Paul Ohm is quoted as stating:

"For almost every person on earth, there is at least one fact about them stored in a computer database that an adversary could use to blackmail, discriminate against, harass, or steal the identity of him or her. I mean more than mere embarrassment or inconvenience; I mean legally cognizable harm. Perhaps it is a fact about past conduct, health, or family shame. For almost every one of us, then, we can assume a hypothetical 'database of ruin,' the one containing this fact but until now splintered across dozens of databases on computers around the world, and thus disconnected from our identity. Reidentification has formed the database of ruin and given access to it to our worst enemies."

With the Rudd Government seemingly stacked with politicians in love with the idea of big data bases and, Health Minister Nicola Roxon's e-health card (with its unique personal identifier within each chip) bearing down on ordinary citizens going quietly about their business in 2010-11, this is a problem we all need to consider carefully. As government legislation will not stop personal privacy being invaded (it can only provide mechanisms to rectify or penalise after the fact) and the hope that IT software will dam the information outflow is fast receding.

Life's like that sometimes.........

........for many an older blogger like me.

NSW Hansard and a case of 'but, butt, but, butt, but'!


Sometimes I wonder how those hardy souls sitting patiently in the NSW Parliament recording for Hansard can actually bear the job, with exchanges like this often being the order of the day:

Mr MATT BROWN (Kiama) [3.53 p.m.], in reply: I acknowledge all those members who made a contribution to the debate, particularly the positive words spoken by my parliamentary colleagues the member for South Coast, Shelley Hancock, and the member for Shellharbour, Lylea McMahon. I was very pleased that the member for South Coast gave the road between Dunmore and Oak Flats, which is the matter we are discussing today, a big tick. The member for Bega asked why I did not acknowledge the Federal money in the project. I want to make it very clear that not one cent of Federal money has gone into the Dunmore to Oak Flats section of the road. They were his words. I do not think the member for Bega understands how this funding works. I agree with the member for South Coast, who said that she would be happy to see that southbound lane opened. I certainly will be because it is still creating a little traffic congestion. However, motorists can see that things are moving ahead extremely well. The member for South Coast then put her big "but" in the debate.
Mrs Shelley Hancock: Point of order: I ask the member to withdraw that remark. It is highly offensive. It is not that big!
Mr MATT BROWN: To the point of order: The member was going along positively and then she said "but".
Mrs Shelley Hancock: I ask the member to withdraw that comment.
Mr MATT BROWN: I am not withdrawing because it is a part of my argument. I did not mean any offence but after a big "but" the debate became negative.
Mrs Shelley Hancock: Madam Deputy-Speaker, I ask you to rule on the point of order I have raised. I take offence at that comment.
Mr MATT BROWN: It is a one "t" but.
The DEPUTY-SPEAKER: Order! The member for Kiama has indicated he is not prepared to withdraw the word "but".
Mr Andrew Constance: Point of order—
The DEPUTY-SPEAKER: Order! I hope the member for Bega rises on a valid point of order.
Mr Andrew Constance: Madam Deputy-Speaker, based on your facial expressions you knew full well what the member for Kiama meant in that remark. Therefore, I ask you to direct the member for Kiama to withdraw that sexist remark.
Mr MATT BROWN: You are wasting time. If I offended the member for South Coast I apologise. It was not my intention. I was referring to the member for South Coast saying "but".
The DEPUTY-SPEAKER: Order! The member for Kiama has indicated that he was referring to the word "but". The member has the call.

NSW Parliament Legislative Assembly 27th October 2009 Hansard transcript

Wednesday 4 November 2009

Talking of sea level change.......


The U.S. University of Colorado has a webpage dealing with sea level change and an interactive map which allows one to plot sea levels for particular areas such as the one below using a lat/long on the NSW North Coast (based on surface height anomoly data from 1992-2009).


Click on images to enlarge