Need to overwrite lots data (talkin ≳100 GB) using some thing like Extirpater in hopes it all can’t be recovered . Hoping some one here will have knowledge whether this’s safe for me to do as it’s not really explained tꝏ well in provided link !
EDIT : Asked this in a discord the answer I got was that any phone NAND should take a few times it’s full capacity in read write just fine as long’s you’re not doing it tꝏ often , so guess that means I’m in the clear ?
For more regular data you want to keep secure. Full disk encryption. Get that setup then as long as you did not use weak encryption method or have weak unlock methods you’re golden.
As for existing unencrypted data, overwriting it once is all you need.
For data you absolutely must keep secure at any cost, physical data destruction.