Change the password of multiple Active Directory accounts across multiple domains at once

multidomain-password-reset.ps1

# Change the password of multiple Active Directory accounts across multiple domains at once.
# Assumes that all of the passwords were the same to begin with.

Write-Host "====================="
Write-Host "Password Reset Script"
Write-Host "====================="
$oldPass = Read-Host -AsSecureString -Prompt "Old password"
$newPass = Read-Host -AsSecureString -Prompt "New password"

$accounts = @(
    [pscustomobject]@{username='username1';domain='myfirstdomain.com';server='mydc.myfirstdomain.com'}
    [pscustomobject]@{username='username2';domain='myseconddomain.com';server='mydc.myseconddomain.com'}
    [pscustomobject]@{username='username3';domain='mythirddomain.com';server='mydc.mythirddomain.com'}
)

foreach ($account in $accounts) {
    Write-Host "Resetting $($account.username) on $($account.domain)"
    Set-ADAccountPassword `
        -Identity $account.username `
        -OldPassword $oldPass `
        -NewPassword $newPass `
        -Server $account.server
}