However, if all the bad news are right --- how can all the data rescue services make money (and apparently a lot of)??
Hi again - well, this is not my profession or an area of great expertise, so I'd only be guessing and/or doing a LOT of googling to find an answer, but a 'fool and his money are soon parted' -
There are plenty of 'google hits' on data recovery including articles on why the service can be SO expensive - and many claim the ability to recover data from all sorts of storage devices, including SSDs - since I've never used such a service, I don't know what their guarantees may be - however, if I needed their skills, I would look for one offering a 'free' (or nominal) initial evaluation on the odds of retrieving my information.
Like I said before, there are numerous storage devices still in use in which 'some' data likely can be recovered - how this will change in the future is only guess work for me and how these services will adjust to these changes in storage technology is yet a further unknown; sorry, no magic ball in my possession.
BUT to emphasize again, backing up computer data is important and the majority of computer users do not perform routine backups, e.g. look at the chart below, only about 15% of of users do daily or weekly backups - for myself, my backups are weekly and include both Time Machine & cloning software (each x 2), plus offsite backup of my wife's personal files to Carbonite and an external SSD of my MBPro's personal files - you can see that I'm into different options and redundancy - these inexpensive HDs can easily fail themselves, especially after 3-4 years in use. Dave
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