Ne, tohle není ani teoreticky možné, jelikož po přepsání nelze žádným způsobem ta data obnovit. Naopak se mýlíš - po rozbití kladivem LZE data obnovit! Po přepsání ne, máme dobré důkazy k tomu, že to nejde. Jen pro jistotu, kdyby k tomu v budoucnu došlo, přepíšu ta data vícekrát.
“…with modern high-density drives, even if you’ve got 10KB of sensitive data on a drive and can’t erase it with 100% certainty, the chances of an adversary being able to find the erased traces of that 10KB in 200GB of other erased traces are close to zero.”
"Studies have shown that most of today’s media can be effectively cleared by one overwrite.
Purging information is a media sanitization process that protects the confidentiality of information against a laboratory attack. For some media, clearing media would not suffice for purging. However, for ATA disk drives manufactured after 2001 (over 15 GB) the terms clearing and purging have converged."