Can someone change the payment address without knowing your 4 digit pin?
Nope
Can you please help me find out where's 5eth gone from my account on MPH?
Did your payment address change?
You can explore every transaction at Transactions page. Filter Debit types and you will see each of them.
Tell me your id or id num, then I'll look into it.
User ID4976
My payment address changed and there was a MP followed by a series of AP. Initially I had my payment treshold at zero and I was doing MP, but after the address was changed, the treshold was set to 0.01. Thank you for your support.
Have you requested PIN reset to your email?
A PIN reset request mail sent to your account at 26th Feb, 18:29 UTC
If not, you should check your email account security. Add OTP or ARS voice verification to your email account.
I found several ETH payments to 0xb983be3c90cc741e3bf2dc7929b57b62ab8b946c
Which is BTC-e wallet address.
Interestingly, these payouts were done before the PIN request.
Also there were no incorrect PIN attempts at your account.
Seems like someone knows your PIN number exactly.
Maybe it is saved at web browser autofill form and someone used your computer. I have no idea about it.
I think you should contact BTC-e to tell about your coins. They can analyze who changed wallet address because they can match wallet address to their member account.