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Satellites Are Rife With Basic Security Flaws
(www.wired.com)
This is a most excellent place for technology news and articles.
For those who didn't read the article:
Some researchers in Germany contacted some satellite manufacturers, and asked to see their firmware. Unsurprisingly, most didn't even bother replying.
(I don't know what they expected... Try emailing any tech company with the same request.)
The three oddballs that did reply are random experimental cubesats. I sincerely doubt they are representative of the industry at large.