I received an email today that my bittrex is logged in somewhere kn a different device so I had to disable it. Is this just my case? If it is, there may be something wrong with my browser that gets my login information because it happened first on my polo account and now , with another exchange. I'm getting worried. Luckily I don't store much on these exchanges , and only deposit if I am a tively trading.

Always enable 2FA and use longer phrases and always include symbols and numbers in them. There are also password managers available for free online if you are lazy to make back ups of your passwords.

Same as me, but its not just bittrex. crypto.pl, eobot, poloniex, polybius, local bitcoin, hashcoin, purse, and more. I dont know i try to scan my computer with kaspersky, but nothing vital, just some wallet detect as bitcoin miner. I didnt see any spyware or keylogger. seriously what happen..

Already check and the url and click, they directly to their site. Nothing weirds. But thanks for advice..

May be your pc/device has been compromised like mine was few weeks ago. I could see successful logins to many of my accounts and all of them were with different passwords. I set up 2FA for all and since then I get unsuccessful login mails. It's mainly as the emails of this forum were leaked and since then I'm using different emails as well.