Has there been any analysis of the question as to whether all copies of the data are deleted?

If Google says 'yes', they're lying of course.

To be fair, a simple answer isn't easy to formulate, e.g.

'The live copy will be deleted at the time requested. All copies will be deleted as their backup-cycle is completed, e.g. working-cache within a few hours, international mirroring within 24 hours, cyclical backups within a month'.

But it's very easy to fail 'the whole truth' test, because:
(1)  'fire' or 'off-site' backup may be on different and longer cycles
     http://www.rogerclarke.com/EC/PBAR.html#FB at (7)
(2)  'archival' backup is recommended, in the form of occasional, say
     yearly copies of 'off-site' backup retained indefinitely - and
     spooled from old to newer media periodically
     http://www.rogerclarke.com/EC/PBAR.html#A at (11)-(13)

I have all email since Feb 1993, and almost all files since Apr 1984.
(Yeah, alright: I failed to spool some of the diskettes forward from the 1984-90 period, and I can't read MacWrite, etc. any more).

Google's still young, but if it's any good, it's got lots backed up from at least the early 2000s, and maybe back to 1998.

So what are the chances they're telling the truth on this matter?


Practicable Backup Arrangements for Small Organisations and Individuals
http://www.rogerclarke.com/EC/PBAR.html

Can Small Users Recover from the Cloud?
http://www.rogerclarke.com/EC/PBAR-SP.html

___________________

On 4/10/19 1:59 pm, Stephen Loosley wrote:
How to Set Your Google Data to Self-Destruct

Google has now given us an option to set search and location data to 
automatically disappear after a certain time. We should all use it.

By Brian X. Chen  Oct. 3, 2019 
https://www.nytimes.com/2019/10/02/technology/personaltech/google-data-self-destruct-privacy.html?
  (snipped)


For years, Google has kept a record of our internet searches by default. The 
company hoards that data so it can build detailed profiles on us, which helps 
it make personalized recommendations for content but also lets marketers better 
target us with ads. While there have been tools we can use to manually purge 
our Google search histories, few of us remember to do so.

So I’m recommending that we all try Google’s new privacy tools.

In May, the company introduced an option that lets us automatically delete data 
related to our Google searches, requests made with its virtual assistant and 
also our location history.

On Wednesday, Google followed up by expanding the auto-delete ability to 
YouTube.

Most of Google’s new privacy controls are in a web tool called My Activity. 
(Here’s the URL: myactivity.google.com.)

Once you get into the tool and click on Activity Controls, you will see an option 
called Web & App Activity. Click Manage Activity and then the button under the 
calendar icon. Here, you can set your activity history on several Google products 
to automatically erase itself after three months or after 18 months. This data 
includes searches made on Google.com, voice requests made with Google Assistant, 
destinations that you looked up on Maps and searches in Google’s Play app store.

Which duration should you go for? It depends on how much you care about getting 
personalized recommendations. If you’re the type who doesn’t care to get any 
personalized recommendations on Google products, you can simply disable search 
history from being retained in your account. Next to the Web & App Activity 
option, toggle the switch to the off position.

For those who don’t want Google to create a record of their location history, 
there’s a switch for that. On the My Activity page, click Activity controls and 
scroll to Location history and turn the switch to the off position.

Just do it

In offering these privacy tools, Google is a step ahead of other internet 
giants like Facebook and Twitter, which don’t provide ways to easily delete 
large batches of dated posts.

It’s difficult to imagine why anyone wouldn’t want to take advantage of 
Google’s auto-delete tools. There’s no practical benefit to letting Google keep 
a history of our online activities from years back. So don’t delay in wiping a 
tiny bit of your digital traces away.


Brian X. Chen is the lead consumer technology writer. He reviews products and 
writes Tech Fix, a column about solving tech-related problems. Before joining 
The Times in 2011 he reported on Apple and the wireless industry for Wired. 
@bxchen  A version of this article appears in print on Oct. 3, 2019, Section B, 
Page 6 of the New York edition with the headline: How to Set Your Google Data 
to Self-Destruct.

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Roger Clarke                            mailto:[email protected]
T: +61 2 6288 6916   http://www.xamax.com.au  http://www.rogerclarke.com

Xamax Consultancy Pty Ltd 78 Sidaway St, Chapman ACT 2611 AUSTRALIA
Visiting Professor in the Faculty of Law            University of N.S.W.
Visiting Professor in Computer Science    Australian National University
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