A customer of our Bitcoin center in Paris (La Maison du Bitcoin) wanted to recover his Electrum seed on a new PC. He searched for "electrum" on Google and the first result was electrum[dot]is.
He downloaded the hijacked version of Electrum from there, installed the app and recovered his seed.
Immediately after restoration, his full balance (~5 BTC) was sent to the hacker.
When installing software wallets, always be extremely careful of what you are doing.