Here is what happened. I tried to log in one morning and noticed that it was taking too long for it to finish ticking after I entered my password. After the second tick, it just sent me back to log in screen to type my password again. This happened like 4 to 5 times in a row and always on second tick. Also, it never said that I have input my password wrong.
After a few tries I finally managed to get in he game. Then I tried using the AH. Each time I click on the AH tab I get a pop up message saying invalid input. Clicking "ok" button only generates another same box to pop up. I did this a few times before the game actually kicked me out then sent me to log in screen.
I logged in again. This time it went smoothly up to the character screen. I then checked my character and found that he now has NO BOOTS. All other gears were still there even my gold. I then quickly changed my password. This did not happen again since.
NOTE: I do not use an authenticator (personal reasons)
I am left confused and nervous about what happened. Is this a bug or a glitch, or was I been hacked?? Your input will be helpful.