yes there is no doubt about this that bitcoin is a safe currency and that is the reason that most of the people are investing their money here in bitcoin, bitcoin is growing regularly and continuously, people have full trust on bitcoin and that is why they have invested their assets in bitcoin.
in fact bbitcoin is the strongest currency in the world, bitcoin price rising to much from the first time launching, so it's very safe to save our money at bitcoin and holding it for long term.