From what I know, your opponents connection to Chess com is completely separate from your own. There is no way for them to put malware to you.
please, can chess.com check my account status
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the last three games I have played, one the opponents put a malware into my account. now my chess.com app is continuously giving error messages or time out no connection. just look at the last three games I have played. The problem began three games games ago, according to game history. cannot contact support, because of timeout error