As I wrote. I have a computer on the MAC and used it only on it. Here are just one made put a new version. Here is this site https://electrum.org/#download
How could they steal I really don't understand.
Already, developers began to suspect on this 

Horrible((((
I forgot to say one more thing. Yesterday I installed the program from the official website 3.3.6. Prior to this, the old version was installed.

Good day. I am sorry, I know English badly. I will try to tell you through the translator. Yesterday, all of my 0.24 btc coins were stolen from my wallet. I saved them for so long, I wanted to go on vacation with children, and now everything. I am in complete despair, I do not know what to do. How can I return the coins?
I had this program for a long time, a separate computer on OS Mac. I don't even work on it.
I had only a password, but friends of my friends said that it was necessary to have a 2FA wallet. Now I understand that it was necessary to update the new file with 2FA protection.
How can I return the coins ((((((((