Whoops. Could happen to anyone, since the Azure PowerShell since (approximately) version 6.3.0 will cache your credentials between sessions without warning you. It’s really easy to run your commands with cached accounts, and end up executing your scripts against the wrong environment. In less serious cases, this means that you’ll end up running commandlets twice against the test environment, while you think you’re running them first against test, and then production. In more serious cases, you’ll deploy your ARM templates or run your cleanup scripts against wrong…Continue reading Oh no! PowerShell cached my Azure credentials and I messed up wrong customer’s environment!