Putting aside the horrible trail of Internet traffic, once used, a computer can never really be “cleaned” of private data. At least not by a person who is not an EE or IT expert. Search guidlines of the DOJ (which other government agencies follow) has the printer and keyboard and all internal system buffers and devises searched for data residue, etc. How would you solve that problem?
So, as long as a person is not under investigation or attempting to conceal criminal conduct or evidence, the only sure way to maintain one’s privacy is complete destruction of the box and all of the components.
Maybe that makes sense. Just like a document retention policy (which every smart company has) one should have an electronic data retention policy. Every year or two, the whole setup, printer, monitor, keyboard and all goes to the chopping block for a session with the log splitter followed by a burial at sea or equivalent.
>>the only sure way to maintain one’s privacy is complete destruction of the box and all of the components.<<
Barbequing does wonders for concealing data that is left behind in the drives and system buffers.