How is this possible???
Someone sold my alty and he paid himself a bitcoin
I reported to the saport but there is no answer !!!!!!!!!!!!!!
Cryptopia probably stole your money, they stole Nexus from me.
If someone else accessed your account, then likely you used the same credentials elsewhere (on another site that got hacked and credentials stolen) or fell for a phishing scam. For any crypto site, ensure you use 2FA, never use the same password on multiple sites (and preferably different email addresses). It is your responsibility to properly secure your account I'm afraid :(