On March 2, Microsoft released an emergency security update for Microsoft Exchange e-mail and communications software, fixing a security vulnerability that dates back to 2013.However, while customers are slowly deploying the update, there are signs that hackers have taken advantage of the vulnerability to launch attacks on at least 30000 institutions in the United States, stealing a lot of e-mail communication information.
"The best protection is to deploy updates to the affected system as soon as possible," he said in a statement to Krebs. We will continue to help customers by providing additional investigation and mitigation guidance. Affected customers should contact our support team for additional help and resources. ".