This depends on how you want to use it, and the alternative you're using to compare:
If you are trying to use Bitcoin to send or receive BTC, then Yes, it's safe because doing so without Bitcoin - e.g. with an unregulated exchange - may result in you losing money.
If you are trying to use Bitcoin to launder money, then No, it probably isn't safe compared with something like cash - difficult to monitor - because Bitcoin makes it relatively easy for enforcement agencies to monitor you.
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