You can't even trust governments to keep your private data safe, as revealed by this report on ABC news.
Where the Vic Govt' released data from 15 Million Myki travel cards for a science competition. Turns out Hackers and Stalkers can also work out where you live, and what your daily movements are.
Whats worse, is the Transport dept' does not even acknowledge its a breach of privacy.
https://www.abc.net.au/news/2019-08-...users/11416616