I have never lost any coins in addresses generated on my side. However I have had lost coins on scam sites prior to knowing those HYIP sites are most likely scams.
Also I have had my computer infected by ransomware while they demand BTC for ransom. I don't pay them (and I don't even hold any BTC by that time) so I don't lost even a single satoshi.
But yes, you have to inspect every source of any software you're downloading. If the software sounded too good, it's probably a scam.
Also I have had my computer infected by ransomware while they demand BTC for ransom. I don't pay them (and I don't even hold any BTC by that time) so I don't lost even a single satoshi.
When I was young, I downloaded a "Steam account cracker", which of course was a nasty trojan and not in the good meaning. Fortunately, I haven't lost Bitcoin from the case. Maybe because I didn't have any that time 
But my system behaved very strange and after virus removal, I had to change all my passwords.
Good luck for you not losing Bitcoins But my system behaved very strange and after virus removal, I had to change all my passwords. But yes, you have to inspect every source of any software you're downloading. If the software sounded too good, it's probably a scam.