AIUI, informal tests have demonstrated quite a bit of data corruption in Flash drives that are literally so worn out that they might as well be about to fail altogether - well beyond any manufacturer's actual TBW specs - but not otherwise, least of all in new drives that are only written once over for the test. It seems that if you don't wear out your drive all that much you'll have far less to worry about.

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userbinator 18 hours ago | parent [-]

No, even drives written once have started showing a rise in (correctable) errors after 2 years: https://news.ycombinator.com/item?id=43739028

	▲	zozbot234 17 hours ago \| parent [-]
		That's a slight rise in ECC which is entirely expected. Flash storage can be expected to rely on error correction as part of normal functioning; it's not an abnormal condition.