A group of Israeli researchers explored the security of the Visual Studio Code marketplace and managed to "infect" over 100 organizations by trojanizing a copy of the popular 'Dracula Official theme to include risky code. Further research into the VSCode Marketplace found thousands of extensions with millions of installs.
Tons of devtools summons cmd.exe and do networks. Their claim is that more than 10% of the vscode marketplate is malicious package (i just divided the number of extensions they says is malicious, by the number of extensions)