Hello. I have logged on to my electrum wallet to find out 0.5 btc was transferred to an unknown wallet and my wallet is empty.
You can go around checking that wallet to which it was sent - on any block explorer or just search engines. Very likely the hacker would have sold away those coins to some exchange. If so you could contact that exchange too. This can help in filing the police report to get information about the hacker's possible location.
I havent found an email for Electrum support, only a link to these forums.
Electrum has no control over the people using their wallets. Only the user who is owning a wallet should do the needful to secure it.
How should i proceed?
Depending on where you live, this will differ, but the first step would be to seek law enforcement.
Is there a chance to retreive the money?
If you are hoping to reverse the money back - there is no chance. Once the money has been sent, it is gone and nothing you can do from your side. But legal help can get your somewhere if you can catch the hacker.
Looks like my phone was hacked.
Possible, is the phone your only device to access the wallet? You should also make sure not to install apps from third part sources and keep email attachments and all away from your device's storage - these are common sources of malware.
Was the seed phrase written somewhere? It is possible this has ended up in the wrong hands because that is the only way your wallet can be accessed by a hacker.
Thanks in advance for the help.
Hoping to see your reply. Indeed new users should first secure their devices and learn methods to avoid hackers first before starting to receive money.