I agree with MacHead -- do it yourself in order to make sure it's been done.
Always be wary of recyclers that claim they will erase your data, because most don't bother (believe me, I buy hundreds of laptops a year from recyclers and on a daily basis I come across personal data that should have been deleted).
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Another option is to use Disk Utility's "security options" under the erase tab to do a full write on the drive after formatting. I am not a shredding expert and I am not aware of how this compared to a 3rd party program that does shredding, but Disk Utility with these settings turned on basically writes to the disk for a matter of hours, so it's hard to believe there would be much left afterward. And using this method you'd still have a usable drive afterward.
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Another option is to use Disk Utility's "security options" under the erase tab to do a full write on the drive after formatting. I am not a shredding expert and I am not aware of how this compares to a 3rd party tool that does shredding, but Disk Utility with these settings turned on basically writes to the disk for a matter of hours, so it's hard to believe there would be much left afterward. And using this method you'd still have a usable drive afterward.
I agree with MacHead -- do it yourself in order to make sure it's been done.
Always be wary of recyclers that claim they will erase your data, because most don't bother (believe me, I buy hundreds of laptops a year from recyclers and on a daily basis I come across personal data that should have been deleted).
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+
Another option is to use Disk Utility's "security options" under the erase tab to do a full write on the drive after formatting. I am not a shredding expert and I am not aware of how this compared to a 3rd party program that does shredding, but Disk Utility with these settings turned on basically writes to the disk for a matter of hours, so it's hard to believe there would be much left afterward. And using this method you'd still have a usable drive afterward.
I agree with MacHead -- do it yourself in order to make sure it's been done.
Always be wary of recyclers that claim they will erase your data, because most don't bother (believe me, I buy hundreds of laptops a year from recyclers and on a daily basis I come across personal data that should have been deleted).