This plugin will attempt to capture spam account registration based on a set of rules. If it detects a possible spam account, it will create a temporary account for that customer and will send out an email with a unique token for the customer to confirm their account. If they confirm the account, a real account is created for them and they can continue shopping. If they don't confirm it (which is usually the case with spam accounts because they use fake email addresses), their temporary account will be deleted - you can control how long to keep the confirmation active.