Is to absolutely destroy it.
Data can even be recovered from this melted laptop.
Once it goes online, consider it public.
Even “protected photos” are not immune, as proven in this incident.
(other KeriBlog-Approved method of deleting data here).
Data Can be Recovered, Even From This
There’s a resason ‘data recovery’ has, since the 90s, been one of the most profitable industries on the interent.
Remember my great crash of 2010? While not easy, it can be done.
Because when was the last time you did?